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The Ultimate Seafood Pasta Recipe (Restaurant-Quality in 40 Minutes!)

Did you know that 81% of home cooks avoid making seafood pasta because they think it’s too complicated or expensive? Yet this Seafood Pasta Recipe delivers Italian trattoria elegance with just 40 minutes of work and costs 60% less than dining out—about $8 per serving versus $25+ at restaurants. If you’ve been intimidated by cooking multiple types of seafood or worried about rubbery shrimp and tough scallops, this foolproof method changes everything. Imagine twirling tender spaghetti coated in a vibrant tomato-garlic sauce, studded with perfectly cooked shrimp, sweet scallops, briny clams, and plump mussels—all in one stunning bowl. This mixed seafood pasta transforms a weeknight dinner into a special occasion without the stress, using a simple stage-cooking technique that guarantees each element is cooked to perfection. Discover more elegant seafood dinners here.

Ingredients You’ll Need

For the Aromatic Tomato Sauce

  • 3 tablespoons extra virgin olive oil, divided
    • Liquid gold, fruity and peppery (Premium Italian EVOO)
    • Substitute: avocado oil for higher smoke point
  • 1 medium yellow onion, finely chopped (about 1/2 cup)
    • Sweet, aromatic base layer
    • Substitute: 2 shallots for more delicate flavor
  • 2 teaspoons garlic, minced (about 4-5 cloves)
    • Pungent, essential Italian flavor (Garlic Press)
    • Substitute: 1 teaspoon garlic powder in a pinch
  • 1/4 teaspoon red pepper flakes (optional)
    • Gentle heat, authentic Italian touch
    • Adjust to taste or omit for mild version
  • 1 can (28 oz) San Marzano whole tomatoes
  • 2 tablespoons unsalted butter
    • Rich, silky finish to sauce
    • Substitute: extra olive oil for dairy-free
  • Salt and freshly ground black pepper, to taste

For the Mixed Seafood Medley

  • 12 oz spaghetti (or linguine, fettuccine)
  • 1/2 lb large shrimp (16-20 count), peeled and deveined
  • 1/2 lb sea scallops (about 6-8 pieces)
  • 1/2 lb fresh littleneck clams, scrubbed clean
    • Briny, oceanic essence in every shell
    • Substitute: Manila clams or cockles
  • 1/2 lb fresh mussels, scrubbed and debearded
    • Dark blue-black shells, tender orange meat
    • Remove beards just before cooking
  • 2 tablespoons fresh Italian parsley, chopped
    • Bright green, herbaceous finish
    • Substitute: fresh basil for sweeter note

Essential for Success

  • 3/4 cup reserved pasta water (from cooking)
    • Starchy liquid that binds sauce to pasta
    • No substitute—this is crucial!
Seafood Pasta Recipe

Step-by-Step Instructions

Step 1: Build the Tomato-Garlic Sauce Foundation (25 minutes)

Heat 2 tablespoons of olive oil in a large, deep sauté pan or Dutch oven over medium heat. Once shimmering, add the finely chopped onion and cook for 4-5 minutes, stirring occasionally, until softened and translucent but not browned. Add the minced garlic and red pepper flakes (if using) and cook for 1 minute more until fragrant—your kitchen should smell incredible! While the onion cooks, puree your San Marzano tomatoes in a blender or use an immersion blender right in the can until mostly smooth (a few chunks are fine for texture).

Pour the tomato puree into the pan with the onions and garlic. Season generously with salt and freshly ground black pepper (start with 3/4 teaspoon salt, 1/4 teaspoon pepper). Bring to a gentle simmer, then reduce heat to medium-low. Let the sauce simmer uncovered for 20 minutes, stirring occasionally, until it thickens slightly and the raw tomato flavor mellows into sweet, concentrated goodness. In the final minute, stir in 2 tablespoons butter until melted and glossy. Remove from heat and set aside.

Pro Tip: Make this sauce up to 2 days ahead and refrigerate. The flavors actually improve overnight! Just reheat gently before adding seafood.

Visual Cue: The finished sauce should be rich and red-orange, thick enough to coat the back of a spoon but still pourable. You should see small oil droplets glistening on the surface.

Common Mistake: Cooking tomato sauce over high heat makes it splatter everywhere and can burn the garlic. Keep it at a gentle simmer, not a rolling boil.

Time Estimate: 5 minutes active cooking + 20 minutes simmering = 25 minutes total.

Seafood Pasta Recipe

Step 2: Cook the Spaghetti to Al Dente Perfection (10-12 minutes)

While your sauce simmers, bring a large pot of water to a rolling boil. Add enough salt so it tastes like the sea (about 1 tablespoon per 4 quarts of water). Add 12 oz spaghetti and cook according to package directions, but aim for al dente—about 8-10 minutes for most dried pasta. You want a slight bite in the center since it will cook a bit more when tossed with the hot sauce and seafood.

Critical step: Before draining, use a measuring cup or ladle to scoop out 3/4 cup of the starchy pasta cooking water. Set this aside—you’ll need it for steaming the shellfish and creating a silky sauce. Drain the spaghetti in a colander but do NOT rinse (the starch helps sauce cling).

Pro Tip: Undercook your pasta by 1-2 minutes if you’re nervous about timing—it will finish cooking when combined with the hot sauce and seafood (Large Pasta Pot with Strainer).

Visual Cue: Al dente pasta should have a tiny white dot in the center when you bite a strand. It should be tender but still have structure and chew.

Time Estimate: 10-12 minutes (happens simultaneously while sauce simmers).

Seafood Pasta Recipe

Step 3: Sear the Shrimp and Scallops (6-8 minutes)

Pat your shrimp and scallops completely dry with paper towels—this is the secret to a beautiful golden crust! Season both sides of the scallops and the shrimp generously with salt and pepper. Heat a large skillet (not the sauce pan) over medium-high heat. Add the remaining 1 tablespoon olive oil and let it get very hot until it shimmers, about 1 minute.

First, sear the scallops: Place scallops in the pan, giving each one space (don’t crowd or they’ll steam). Sear without moving them for 1-2 minutes until a golden-brown crust forms on the bottom. Flip and sear the second side for another 1-2 minutes until just opaque in the center. Transfer to a plate immediately—they’ll continue cooking from residual heat.

Next, cook the shrimp: Add shrimp to the same hot pan (add a touch more oil if needed). Cook for 2 minutes on the first side until pink and starting to curl, then flip and cook 1-2 minutes more until completely pink and opaque. Don’t overcook or they’ll be rubbery! Transfer shrimp to the plate with scallops.

Pro Tip: The shrimp are done when they form a “C” shape. If they curl into a tight “O” or spiral, they’re overcooked. Remove them at the “C” stage (Professional Fish Spatula).

Visual Cue: Perfect scallops have a deep golden-brown crust on both flat sides with a translucent band in the very center. Shrimp should be bright pink with white flesh and slightly translucent in the thickest part.

Common Mistake: Wet seafood won’t sear—it steams! Always pat completely dry. Also, don’t flip too early or the crust won’t develop. Wait for the full 1-2 minutes.

Time Estimate: 3-4 minutes for scallops + 3-4 minutes for shrimp = 6-8 minutes total.

Seafood Pasta Recipe

Step 4: Steam the Clams and Mussels (5-7 minutes)

Reduce the heat under your skillet to medium. Add the scrubbed clams and mussels to the pan along with all 3/4 cup of reserved pasta water. Give them a quick stir, then cover the pan with a tight-fitting lid. Let the shellfish steam for 5-7 minutes, shaking the pan once or twice, until the shells open wide. Check after 5 minutes—most should be open.

Important: Discard any clams or mussels that remain tightly closed after 7 minutes of steaming. Closed shells mean they were dead before cooking and aren’t safe to eat. Open shells are your green light!

Pro Tip: Before cooking, tap any open shells on the counter. If they close, they’re alive and good to use. If they stay open, discard them before cooking.

Visual Cue: When done, you’ll see wide-open shells revealing plump, orange-yellow mussel meat and creamy clam meat. The pasta water will have transformed into a light, briny broth.

Time Estimate: 5-7 minutes covered steaming.

Seafood Pasta Recipe

Step 5: Combine Everything into Seafood Pasta Magic (3-5 minutes)

Now for the grand finale! Add your tomato sauce to the pan with the steamed clams and mussels. Then add the drained spaghetti, seared shrimp, and seared scallops. Using tongs or two large forks, gently toss everything together over medium heat for 2-3 minutes until the pasta is evenly coated in sauce, the seafood is warmed through and distributed, and everything is hot and glossy.

If the sauce seems too thick, add a splash of the remaining pasta water (2-3 tablespoons at a time) to create a silky, clingy consistency. The starchy water acts as an emulsifier, helping the oil-based sauce bind to the pasta. Taste and adjust seasoning with more salt, pepper, or red pepper flakes if desired.

Pro Tip: Use tongs to lift and toss rather than stirring with a spoon. This keeps the seafood intact and distributes everything evenly without breaking delicate shells (Professional Kitchen Tongs).

Visual Cue: Every strand of spaghetti should glisten with red sauce. The seafood should be distributed throughout, not sitting on top. Shells should be open and inviting.

Time Estimate: 3-5 minutes to combine and heat through.

Step 6: Garnish and Serve Immediately (1 minute)

Remove the pan from heat. Sprinkle the chopped fresh parsley over the top and give one final gentle toss. Divide the seafood pasta among shallow bowls or plates, making sure each serving gets a good mix of shrimp, scallops, clams, and mussels. Serve immediately while piping hot—this dish doesn’t wait!

Pro Tip: For restaurant presentation, use tongs to twirl pasta into a nest in the center of each bowl, then arrange shellfish around the edges with shells facing out for visual drama.

Visual Cue: A beautiful plate has a mound of glossy red pasta in the center with colorful seafood pieces and open shells creating a crown around it. Bright green parsley provides the finishing touch.

Seafood Pasta Recipe

Nutritional Breakdown (per serving, serves 4)

NutrientAmount% Daily ValueComparison
Calories52026%40% less than restaurant versions
Protein38g76%3x more than vegetarian pasta
Fat15g19%Mostly heart-healthy fats
Carbohydrates58g19%Complex carbs from pasta
Fiber4g16%From tomatoes and vegetables
Sugar8gNatural sugars from tomatoes
Sodium780mg34%Control by adjusting salt
Omega-3s680mgFrom seafood (EPA/DHA)
Vitamin B124.2mcg175%Essential for energy
Selenium62mcg113%Powerful antioxidant

Health Benefits:

Protein Powerhouse for Muscle & Metabolism: With 38g of complete protein per serving, this seafood pasta provides all nine essential amino acids your body needs for muscle repair, hormone production, and immune function. The mixed seafood delivers more protein per calorie than beef or chicken, making it ideal for athletes, active individuals, or anyone seeking lean protein sources.

Omega-3 Fatty Acids for Heart & Brain Health: Shrimp, scallops, clams, and mussels are rich in EPA and DHA omega-3s, proven to reduce inflammation, lower triglycerides by up to 30%, and support cognitive function according to research published in the American Journal of Clinical Nutrition (read more). Just one serving provides over 680mg of these essential fats.

Micronutrient Treasure Trove: Shellfish are among the most nutrient-dense foods on earth. This dish delivers 175% of your daily vitamin B12 (energy and red blood cell formation), 113% of selenium (antioxidant protection), plus significant amounts of iron, zinc, copper, and iodine. The tomatoes add lycopene, a powerful antioxidant linked to reduced cancer risk.

Lower in Saturated Fat Than Meat Pastas: Unlike cream-based or meat-heavy pastas, this mixed seafood version gets its richness from olive oil and seafood, not heavy cream or fatty meats. You’ll consume 40% fewer calories and 60% less saturated fat than a typical chicken alfredo or carbonara. Explore more heart-healthy seafood recipes.

Make It Your Own

Dietary Adaptations:

Gluten-Free: Swap regular spaghetti for gluten-free pasta made from rice, corn, or chickpeas. Barilla and Jovial make excellent versions that hold up well in saucy dishes (Gluten-Free Spaghetti). Cook according to package directions as GF pasta timing varies.

Dairy-Free: Simply omit the butter at the end of the sauce, or replace it with 2 extra tablespoons of olive oil for richness. The sauce will still be silky and delicious. Some dairy-free butter alternatives (Earth Balance, Miyoko’s) also work well (Vegan Butter).

Low-Carb/Keto: Replace the spaghetti with spiralized zucchini noodles (zoodles) or shirataki noodles. Add the “pasta” in the final 2 minutes just to warm through, not cook. This drops carbs to under 15g per serving (Spiralizer Tool).

Pescatarian-Friendly: Already perfect! This is a protein-rich, plant-forward dish that fits beautifully into a pescatarian lifestyle.

Budget-Friendly: Use just shrimp and mussels (skip scallops and clams) to cut costs by 40% while maintaining great flavor. Or swap expensive seafood for more affordable options like frozen shrimp, calamari rings, or firm white fish chunks.

Flavor Variations:

Spicy Diavolo Style: Double the red pepper flakes to 1/2 teaspoon and add 1/4 teaspoon cayenne pepper to the sauce. Finish with a drizzle of hot chili oil for fiery heat that seafood lovers crave.

White Wine Seafood Pasta: Skip the tomatoes entirely. Instead, create a white wine sauce: sauté onions and garlic, deglaze with 1 cup dry white wine, add 1/2 cup clam juice, reduce by half, then add pasta water and finish with butter and lemon juice. Luxurious and restaurant-worthy!

Creamy Seafood Pasta: After adding the tomato sauce, stir in 1/2 cup heavy cream or full-fat coconut milk for a rich, pink, vodka-sauce-style dish. This makes it more indulgent and kid-friendly.

Mediterranean Herb-Infused: Add 1 teaspoon dried oregano, 1/2 teaspoon dried basil, and fresh lemon zest to the tomato sauce. Finish with fresh basil leaves and a squeeze of lemon juice for bright, herbaceous notes.

Asian-Fusion Seafood Noodles: Replace tomato sauce with a base of garlic, ginger, soy sauce, and sesame oil. Use rice noodles instead of pasta, and finish with cilantro, scallions, and a squeeze of lime. Completely different but equally delicious!

Cajun Seafood Pasta: Season the seafood with Cajun spice blend before searing. Add diced bell peppers and celery to the sauce base. Finish with a splash of hot sauce and fresh thyme for Louisiana-style bold flavors (Cajun Seasoning).

Chef’s Secrets for Perfect Results

⚠️ Avoid These 3 Common Mistakes:

  1. Overcooking the Seafood: This is the #1 complaint with homemade seafood pasta—rubbery shrimp, tough scallops, chewy mussels. It happens when everything is cooked together in the sauce for too long. → Solution: Use the stage-cooking method in this recipe. Sear shrimp and scallops separately first, remove them, then steam shellfish, and only combine everything at the very end for 2-3 minutes. Each type of seafood gets exactly the cooking time it needs, and nothing becomes overdone.
  2. Using Wet Scallops Instead of Dry Scallops: About 47% of home cooks don’t know there’s a difference! “Wet” scallops are treated with sodium tripolyphosphate (STP), which makes them absorb water and weigh more. They release liquid when cooked and never brown properly. → Prevention: Always ask for “dry” or “day-boat” scallops at the fish counter. They cost slightly more but sear beautifully with a golden crust. You’ll see the difference immediately—dry scallops are ivory-colored and slightly sticky, while wet ones are bright white and sitting in liquid.
  3. Not Saving Pasta Water: Many home cooks dump all their pasta water down the drain, then wonder why their sauce is thick and clumpy instead of silky and glossy. → Fix: Before draining pasta, ALWAYS scoop out at least 1 cup of the starchy cooking water. It’s your secret weapon for emulsifying oil-based sauces and creating that restaurant-quality consistency. Add it a little at a time when tossing pasta with sauce until you reach the perfect clingy, glossy texture.

Success Indicators:

  • Visual: The finished dish is vibrant and colorful—red sauce glistening on pasta strands, pink shrimp, white scallops, and dramatic open shells (black mussels, cream clams). Bright green parsley provides the final accent. Every element should look distinct, not mushed together.
  • Texture: Pasta should be al dente with a slight chew—not mushy. Shrimp should be tender with a slight snap, scallops buttery-soft in the center with a golden crust, and shellfish meat plump and tender (not rubbery). The sauce should coat pasta like silk, not sit in a pool at the bottom of the bowl.
  • Aroma: Your kitchen (and honestly, your whole house) should smell like an Italian seaside trattoria—sweet tomatoes, briny ocean air, roasted garlic, and fresh herbs. If you smell fishy or ammonia-like odors, your seafood wasn’t fresh. Good seafood smells like clean ocean water, not “fishy.”

Storage Solutions

Refrigerator: Store leftover seafood pasta in an airtight container for up to 2 days maximum (Glass Storage Containers). Be aware that seafood quality degrades quickly, and shellfish especially don’t reheat well—the texture becomes tough and rubbery. If you know you’ll have leftovers, consider removing some of the seafood before combining with pasta.

Reheating: For best results, reheat gently in a covered skillet over medium-low heat with a splash of water, white wine, or additional pasta water to loosen the sauce. Microwave reheating works in a pinch (50% power for 1-2 minutes, stirring halfway) but will toughen the seafood more than stovetop reheating.

Freezing: I do NOT recommend freezing this dish. Seafood becomes watery and rubbery when frozen and thawed, and the pasta texture suffers significantly. If you want to prep ahead, freeze the tomato sauce separately (up to 3 months), then make fresh pasta and cook seafood when ready to serve.

Make-Ahead Strategy: The tomato sauce can be made up to 2 days ahead and refrigerated, or frozen for up to 3 months. On serving day, reheat the sauce, cook fresh pasta, and prepare the seafood—you’ll still be done in 20 minutes! This is perfect for entertaining when you want to minimize day-of stress.

Pro Tip for Leftovers: If you have leftover seafood pasta, transform it into a baked pasta casserole the next day. Transfer to a baking dish, top with mozzarella and Parmesan, and bake at 375°F for 15-20 minutes. The cheese masks the texture changes in reheated seafood.

Frequently Asked Questions

Q: Can I use frozen seafood for this Seafood Pasta Recipe?
A: Absolutely! Frozen seafood often equals or exceeds “fresh” quality since it’s flash-frozen on the boat. Use individually quick-frozen (IQF) shrimp and scallops—thaw them overnight in the refrigerator or quick-thaw in cold water for 15 minutes. Pat completely dry before cooking. Avoid buying shellfish (clams/mussels) frozen in the shell as they’re often dead before freezing. For those, choose fresh live shellfish or substitute with other seafood.

Q: What if I can’t find fresh clams or mussels for my mixed seafood pasta?
A: You have several options: (1) Use all shrimp and scallops and increase the quantities to 3/4 lb each. (2) Add 1/2 lb squid/calamari rings, which cook quickly. (3) Use 1/2 lb firm white fish (halibut, cod, mahi-mahi) cut into 1-inch chunks—add in the last 3-4 minutes. (4) Buy frozen cooked clam meat or mussels (specialty stores carry these) and just warm them through. The key is mixing textures and seafood types for variety. See our guide to choosing fresh seafood.

Q: How do I know if my shellfish are fresh and safe to eat?
A: Fresh live clams and mussels should smell like clean ocean water, never fishy or like ammonia. Before cooking: Tap any open shells—they should close within a few seconds. If they don’t close, discard them (they’re dead). After cooking: Any shells that remain tightly closed should be discarded (they were dead before cooking). Trust your nose—if something smells off, don’t risk it!

Q: Can I make this shrimp scallop pasta without the tomato sauce?
A: Yes! Make a white wine garlic sauce instead: Sauté onions and garlic, add 1 cup dry white wine + 1/2 cup clam juice (or chicken broth), reduce by half, then add pasta water and 3 tablespoons butter. This creates a light, elegant sauce that lets the seafood shine. Finish with lemon juice, parsley, and a pinch of red pepper flakes. Both versions are authentic Italian preparations.

Q: What’s the best pasta shape for Seafood Pasta Recipe?
A: Long pasta works best because it captures sauce and seafood in every twirl. Spaghetti is classic, but linguine (slightly wider and flat) is actually preferred in Italy for seafood. Fettuccine works for creamier versions. Angel hair is delicate and cooks quickly but can get clumpy. Avoid short pasta like penne or rigatoni for this dish—they don’t hold sauce as well and the seafood gets lost between pieces.

Q: How can I scale this recipe for a dinner party?
A: This recipe easily doubles or triples! For 8 servings, double everything and use two large skillets for cooking the seafood (or work in batches). The tomato sauce can be made in one large pot. The key is not overcrowding your pans when searing—seafood needs space to brown properly, not steam. Time each batch the same way and you’ll have perfect results for a crowd.

Serving Suggestions That Shine

This Seafood Pasta Recipe pairs beautifully with:

  • Crusty Garlic Bread – Essential for soaking up every drop of sauce (Artisan Bread Mix)
  • Simple Italian Salad – Mixed greens, cherry tomatoes, red onion, and balsamic vinaigrette cut the richness
  • Roasted Garlic Green Beans – Lightly charred with lemon zest for a fresh vegetable side
  • Caesar Salad – Classic pairing with creamy, garlicky romaine
  • Grilled Asparagus – Drizzled with olive oil and sea salt for elegant simplicity
  • Antipasto Platter – Serve before the pasta with olives, marinated artichokes, and prosciutto

Wine Pairing: A crisp Pinot Grigio or Vermentino (Italian whites) complement the seafood without overwhelming it. For tomato-based versions, try a light-bodied Chianti or Sangiovese. Sparkling Prosecco is festive and palate-cleansing between bites.

Finishing Touches: Offer these at the table: extra red pepper flakes for heat lovers, freshly grated Parmesan (though many Italians skip cheese with seafood), lemon wedges for brightness, and high-quality olive oil for drizzling.

Your New Show-Stopping Dinner is Ready

This Seafood Pasta Recipe proves that restaurant-quality Italian cuisine is absolutely achievable at home. With its stage-cooking technique ensuring perfectly tender seafood, vibrant tomato-garlic sauce, and impressive presentation, you’ll create a dish that looks and tastes like it came from a coastal Italian trattoria—not your Tuesday night kitchen. Join the 10,000+ home cooks who’ve mastered this mixed seafood pasta and discovered that elegant entertaining can be stress-free and delicious!

Ready to impress your dinner guests (or just yourself)? Make this seafood pasta tonight and experience the magic of homemade Italian seafood perfection. Drop a comment below with your favorite seafood combination, and share a photo of your beautiful bowl—we love seeing your culinary creations!

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Seafood Pasta Recipe

Seafood Pasta Recipe (Restaurant-Quality in 40 Minutes!)

This Italian-style Seafood Pasta features shrimp, scallops, clams and mussels in a simple tomato-garlic sauce. Using a professional stage-cooking technique, each type of seafood is cooked separately to guarantee perfect tenderness—no more rubbery shrimp or tough scallops! Ready in 40 minutes with restaurant-quality results at 60% less cost than dining out. Perfect for date nights or impressive dinner parties.

  • Total Time: 40 minutes
  • Yield: 4 Servings 1x

Ingredients

Scale

FOR THE TOMATO-GARLIC SAUCE

  • 3 tablespoon extra virgin olive oil (divided)
  • 1 medium yellow onion (finely chopped|(about 1/2 cup))
  • 2 teaspoon garlic (minced (about 45 cloves))
  • 1/4 teaspoon red pepper flakes (optional, for heat)
  • 1 28- oz can San Marzano whole tomatoes (blended into puree; substitute: crushed tomatoes or 3 cups marinara)
  • 2 tablespoon unsalted butter (substitute: extra olive oil for dairy-free)
  • |Salt and freshly ground black pepper to taste

FOR THE MIXED SEAFOOD

  • 12 oz spaghetti (or linguine, fettuccine; substitute: gluten-free pasta)
  • 1/2 lb large shrimp (1620 count, peeled and deveined (substitute: prawns or langostinos))
  • 1/2 lb sea scallops (about 68 pieces; buy “dry” not “wet” scallops)
  • 1/2 lb fresh littleneck clams (scrubbed clean (substitute: Manila clams or cockles))
  • 1/2 lb fresh mussels (scrubbed and debearded (remove beards just before cooking))
  • 2 tablespoon fresh Italian parsley (chopped (substitute: fresh basil))
  • 3/4 cup reserved pasta water (starchy liquid from cooking pasta)

Instructions

  1. Heat 2 tablespoons of olive oil in a large, deep sauté pan or Dutch oven over medium heat. Once shimmering, add the finely chopped onion and cook for 4-5 minutes, stirring occasionally, until softened and translucent but not browned. Add the minced garlic and red pepper flakes (if using) and cook for 1 minute more until fragrant. Puree your San Marzano tomatoes in a blender or with an immersion blender until mostly smooth. Pour the tomato puree into the pan with the onions and garlic. Season generously with salt and pepper (start with 3/4 teaspoon salt, 1/4 teaspoon pepper). Bring to a gentle simmer, then reduce heat to medium-low. Let the sauce simmer uncovered for 20 minutes, stirring occasionally, until it thickens slightly. In the final minute, stir in 2 tablespoons butter until melted and glossy. Remove from heat and set aside. Pro Tip: Make this sauce up to 2 days ahead and refrigerate—flavors improve overnight!
  2. While your sauce simmers, bring a large pot of water to a rolling boil. Add enough salt so it tastes like the sea (about 1 tablespoon per 4 quarts of water). Add 12 oz spaghetti and cook according to package directions until al dente—about 8-10 minutes for most dried pasta. You want a slight bite in the center since it will cook a bit more when tossed with sauce. CRITICAL STEP: Before draining, use a measuring cup or ladle to scoop out 3/4 cup of the starchy pasta cooking water. Set this aside—you’ll need it for steaming shellfish and creating silky sauce. Drain the spaghetti in a colander but do NOT rinse. Pro Tip: Undercook pasta by 1-2 minutes if nervous about timing—it finishes cooking when combined with hot sauce.
  3. Pat your shrimp and scallops completely dry with paper towels—this is the secret to a beautiful golden crust! Season both sides of the scallops and the shrimp generously with salt and pepper. Heat a large skillet (not the sauce pan) over medium-high heat. Add the remaining 1 tablespoon olive oil and let it get very hot until it shimmers, about 1 minute. First, place scallops in the pan, giving each one space (don’t crowd). Sear without moving them for 1-2 minutes until a golden-brown crust forms on the bottom. Flip and sear the second side for another 1-2 minutes until just opaque in the center. Transfer to a plate immediately. Next, add shrimp to the same hot pan. Cook for 2 minutes on the first side until pink and starting to curl, then flip and cook 1-2 minutes more until completely pink and opaque (C-shape, not tight O-shape). Transfer shrimp to the plate with scallops. Pro Tip: Wet seafood won’t sear—always pat completely dry!
  4. Reduce the heat under your skillet to medium. Add the scrubbed clams and mussels to the pan along with all 3/4 cup of reserved pasta water. Give them a quick stir, then cover the pan with a tight-fitting lid. Let the shellfish steam for 5-7 minutes, shaking the pan once or twice, until the shells open wide. Check after 5 minutes—most should be open. IMPORTANT: Discard any clams or mussels that remain tightly closed after 7 minutes of steaming (they were dead before cooking and aren’t safe). Open shells are your green light! Pro Tip: Before cooking, tap any open shells—if they close, they’re alive and good. If they stay open, discard them.
  5. Add your tomato sauce to the pan with the steamed clams and mussels. Then add the drained spaghetti, seared shrimp, and seared scallops. Using tongs or two large forks, gently toss everything together over medium heat for 2-3 minutes until the pasta is evenly coated in sauce, the seafood is warmed through and distributed, and everything is hot and glossy. If the sauce seems too thick, add a splash of the remaining pasta water (2-3 tablespoons at a time) to create a silky, clingy consistency. The starchy water acts as an emulsifier, helping the sauce bind to the pasta. Taste and adjust seasoning with more salt, pepper, or red pepper flakes if desired. Pro Tip: Use tongs to lift and toss rather than stirring—this keeps seafood intact and distributes everything evenly.
  6. Remove the pan from heat. Sprinkle the chopped fresh parsley over the top and give one final gentle toss. Divide the seafood pasta among shallow bowls or plates, making sure each serving gets a good mix of shrimp, scallops, clams, and mussels. For restaurant presentation, use tongs to twirl pasta into a nest in the center of each bowl, then arrange shellfish around the edges with shells facing out. Serve immediately while piping hot—this dish doesn’t wait! Pro Tip: Offer lemon wedges, extra red pepper flakes, and high-quality olive oil at the table for guests to customize.

Notes

Storage: Store leftover seafood pasta in an airtight container for up to 2 days maximum in the refrigerator. Seafood quality degrades quickly and doesn’t reheat well—texture becomes tough. Reheat gently in a covered skillet over medium-low heat with a splash of water, white wine, or pasta water. Microwave at 50% power for 1-2 minutes, stirring halfway. DO NOT FREEZE—seafood becomes watery and rubbery when frozen and thawed.

Make-Ahead Strategy: The tomato sauce can be made up to 2 days ahead and refrigerated, or frozen for up to 3 months. On serving day, reheat sauce, cook fresh pasta, and prepare seafood—you’ll still be done in 20 minutes!

Substitutions:
– Frozen seafood: Use IQF (individually quick-frozen) shrimp and scallops. Thaw overnight in fridge or quick-thaw in cold water 15 minutes. Pat completely dry before cooking.
– No clams/mussels: Use all shrimp and scallops (increase to 3/4 lb each), add squid rings, or use firm white fish chunks (halibut, cod, mahi-mahi).
– Gluten-free: Use gluten-free pasta, cook per package directions.
– Dairy-free: Omit butter, use 2 extra tablespoons olive oil.
– Low-carb/Keto: Replace pasta with zucchini noodles or shirataki noodles. Add in final 2 minutes to warm through.

Flavor Variations:
– White Wine Version: Skip tomatoes. Sauté onions/garlic, add 1 cup dry white wine + 1/2 cup clam juice, reduce by half, add pasta water and 3 tablespoons butter. Finish with lemon juice and parsley.
– Spicy Diavolo: Double red pepper flakes to 1/2 teaspoon, add 1/4 teaspoon cayenne. Finish with chili oil drizzle.
– Creamy: Add 1/2 cup heavy cream or coconut milk to tomato sauce for pink vodka-sauce style.
– Cajun: Season seafood with Cajun spice before searing. Add bell peppers and celery to sauce.

Troubleshooting:
– Rubbery seafood? Overcooked. Use stage-cooking method and remove seafood as soon as done.
– No golden crust on scallops? They were “wet” scallops or not patted dry. Always buy “dry” scallops.
– Thick, clumpy sauce? Need more pasta water. Add 2-3 tablespoons at a time until silky.
– Fishy smell? Seafood wasn’t fresh. Good seafood smells like clean ocean, never “fishy.”

Shellfish Safety:
– BEFORE cooking: Live clams/mussels should close when tapped. Discard any that stay open.
– AFTER cooking: Discard any that remain closed after 7 minutes steaming.
– Fresh shellfish smells like clean ocean water, never ammonia or fishy.

Best Pasta Shapes: Spaghetti (classic), linguine (preferred in Italy for seafood), fettuccine (for creamy versions). Avoid short pasta like penne.

Serving Suggestions: Pair with crusty garlic bread, simple Italian salad, roasted asparagus, or Caesar salad. Wine: Pinot Grigio, Vermentino, light Chianti, or Prosecco.

Scaling Recipe: Doubles or triples easily. Use multiple skillets for seafood or work in batches. Don’t overcrowd pans when searing.

  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Dinner, Main Course
  • Cuisine: Italian, Mediterranean, Seafood

Nutrition

  • Calories: 520

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Seafood Pasta Recipe

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