Italian-Style Seafood Marinara with Prawns

Originally published: July 2021
Updated: December 2025

I’ve made this seafood marinara many times, and it always works. Let’s cook! This simple, tomato-based pasta with prawns, mussels, garlic, and olive oil is ready in just 20 minutes — perfect for a weeknight or easy entertaining.

This Italian-style seafood marinara with prawns, mussels, and clams is special without being complicated. Made with spaghetti, a rich tomato sauce, and perfectly cooked seafood, it’s a comforting meal ready in around 20 minutes.

Using frozen seafood keeps this recipe practical and affordable, while key techniques — letting the sauce reduce and adding seafood at the right time — ensure everything stays tender and flavorful. The result is a glossy, vibrant tomato sauce with perfectly cooked seafood that tastes like something you’d order at a coastal Italian restaurant.

Whether you’re cooking for a relaxed weeknight dinner or something a little more special, this is one of those reliable recipes that delivers every time.

If you love quick and satisfying pasta dishes, you’ll also enjoy my Frankfurter Pasta recipe — another favorite that’s perfect for busy nights.

Ready in just 20 minutes, this Italian-style seafood marinara combines prawns, mussels, and clams in a flavorful tomato sauce. It’s an effortless, restaurant-quality pasta that works beautifully for both weeknight dinners and casual entertaining.

Why You’ll Love This Recipe

• Ready in around 20 minutes
  A quick, satisfying meal that doesn’t require hours in the kitchen.
• Uses frozen seafood (easy + affordable)
  No need for specialty shopping — this recipe works beautifully with freezer staples.
• Light, fresh, and full of flavor
  The tomato sauce stays bright and vibrant, perfectly complementing the seafood.
• Restaurant-quality, made at home
  Simple techniques create a glossy, well-balanced sauce every time.
• Versatile and flexible
  Serve with pasta, crusty bread, or enjoy as a lighter seafood dish on its own.

What To Serve With Seafood Marinara

Sides & Add-Ons

• Crusty bread or Rustic Ciabatta Bread (perfect for dipping)
• Simple green salad with lemon dressing
• Steamed or sautéed veggies.

Pasta & Base Options

• Spaghetti (classic choice)
• Linguine or fettuccine
• Or serve without pasta for a lighter option

Optional Extras

• Chili flakes for gentle heat
• Extra lemon wedges for brightness
• Fresh parsley for finishing

Ingredients

• 200–300 g spaghetti
• 20–30 prawns, thawed and drained
• 500 g mussels, half-shell
• 500 g clams
• 1–2 cans chopped tomatoes, good quality
• 3 garlic cloves, sliced or chopped
• Extra virgin olive oil
• Salt, to taste
• Freshly ground black pepper
• Optional: ¼ cup dry white wine
• Fresh parsley, chopped (for garnish)

How to Make Seafood Marinara (Simple Italian-Style)

1. Cook the pasta
Bring a large pot of well-salted water to a rolling boil. Cook spaghetti until al dente, reserving ½ cup pasta water. Drain and set aside.

2. Shallow-fry the prawns (important!)
Heat a small drizzle of olive oil in a pan over medium-high heat. Add prawns in a single layer and cook 1–2 minutes per side until just pink. Remove and set aside. This keeps them tender and prevents rubberiness.

3. Start the sauce
In a wide pan, heat olive oil over medium heat. Add garlic and cook gently until fragrant (soft, not browned). Optional: Add ¼ cup dry white wine and simmer 1–2 minutes.

4. Add tomatoes and reduce
Stir in canned tomatoes, season with salt and black pepper, and simmer uncovered for 8–10 minutes until slightly thickened.

5. Cook clams and mussels
Add frozen clams and mussels to the sauce. Cover and cook 3–5 minutes until clams open and mussels are heated through. The liquid released is normal and adds flavor.

6. Combine prawns and pasta
Return the cooked prawns to the sauce. Add cooked spaghetti and toss gently, using reserved pasta water if needed to coat the noodles evenly.

7. Finish and serve
Garnish with chopped parsley and freshly ground black pepper. Serve immediately.

Expert Tips for Perfect Seafood Marinara

• Shallow-fry the prawns separately – This is the trick to keeping them tender and juicy. Overcooked prawns become rubbery, so watch for the pink stage.
• Cook shellfish in order – Clams and mussels go into the sauce first. Once the clams open and mussels are heated through, the prawns are added back at the end.
• Reduce the sauce properly – Let the tomato sauce simmer and thicken before adding shellfish. This prevents a watery sauce and concentrates flavor.
• Use reserved pasta water – Adding a splash helps the sauce cling perfectly to the spaghetti.
• Optional white wine – A little dry white wine at the garlic stage adds depth and brightness to the sauce.
• Garnish for freshness – Finish with chopped parsley and black pepper; it elevates flavor and adds a beautiful visual pop.

Make-Ahead, Storage & Reheating

Reheating: Warm gently over low to medium heat. Add a splash of water or reserved pasta water if needed to loosen the sauce and maintain tenderness.

Make-ahead: Prepare the sauce up to 2 days in advance. Keep the seafood separate until just before serving for the best texture.

Storage: Store in an airtight container in the refrigerator.

Variations & Easy Swaps

• Shrimp-Only Version
  Skip the mussels and clams and use only prawns for a simpler dish.
• Spicy Marinara
  Add chili flakes while cooking the sauce for a gentle heat.
• Garlic-Forward Version
  Add an extra clove of garlic for a deeper, more robust flavor.
• Herb Variation
  Add fresh basil or oregano for a more traditional Italian finish.
• No-Pasta Option
  Serve as a seafood stew with crusty bread instead of pasta.

FAQ

Can I use frozen seafood for seafood marinara?
Yes. Add frozen prawns, mussels, and clams after the sauce has thickened. Shallow-fry prawns separately until just pink to keep them tender.

How do I prevent seafood marinara from becoming watery?
Simmer the tomato sauce until reduced before adding seafood. Frozen shellfish release liquid, so reducing first is key.

Can I make seafood marinara ahead of time?
Yes. Prepare the sauce up to 24 hours ahead, then add seafood just before serving.

How long does seafood marinara last in the fridge?
Store in an airtight container for up to 2 days. Reheat gently over low heat.

What pasta works best with seafood marinara?
Spaghetti is classic, but linguine or fettuccine also work well.

A Note on the Photos

The photos show the key cooking sequence:

1. Frozen clams ready to cook (Photo 1)
2. Prawns cooking stages, from raw to fully pink (Photos 2–4) — shallow-frying keeps them tender
3. Clams and mussels gently steaming in the sauce (final photo). Once clams open, they’re fully cooked; prawns are then added back and tossed with the spaghetti.

The photos show the key cooking order for this seafood marinara. Prawns are cooked separately until just pink to keep them tender, while the clams and mussels steam in the sauce until opened and fully cooked. Once ready, everything is combined with the spaghetti and finished with fresh parsley.

More Festive & Family-Style Recipes

• Gammon roast
• Sticky cherry ham
• Smashed bacon & cheese potatoes
• Potato salad
• Mashed potatoes
• Antipasti
• Charcuterie boards
• Trifle
• Fruit salad

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