Seafood Lasagna: The Ultimate Creamy & Decadent Recipe

By Sienna Whitman

On March 9, 2026

A thick, delicious slice of white seafood lasagna on a white plate, showcasing the creamy layers of pasta, seafood, and cheese.

Cuisine

American, Italian

Prep time

30 minutes

Cooking time

50 minutes

Total time

80 minutes

Servings

8 servings

Prepare to indulge in the most luxurious pasta dish you’ve ever made at home. This Seafood Lasagna is a true showstopper, layering tender pasta with a rich, creamy white sauce, a decadent seafood medley, and three types of cheese. Forget everything you know about traditional lasagna; this recipe transforms the classic into a five-star meal that’s perfect for special occasions or when you simply want to treat yourself to something extraordinary.

We’ve crafted this recipe to be completely foolproof, addressing the common pitfalls to ensure your final dish is rich and creamy, never watery. It’s the kind of meal that will have everyone asking for the recipe.

Why You’ll Adore This Seafood Lasagna Recipe

If you’re looking for a dish that screams elegance and comfort all at once, this is it. The combination of succulent shrimp, sweet scallops, and delicate crab meat creates a symphony of flavors that pairs perfectly with the velvety, homemade béchamel sauce. Unlike a heavy meat lasagna, this version is rich yet refined.

  • Incredibly Flavorful: The savory seafood is perfectly balanced by the creamy, garlic-infused white sauce and nutty Parmesan cheese.
  • Perfect for Guests: This is a true restaurant-quality dish that will seriously impress your family and friends.
  • Surprisingly Simple: While it looks and tastes gourmet, the steps are straightforward and easy for any home cook to master.

The Key Ingredients for Perfect Seafood Lasagna

The magic of this dish lies in using high-quality ingredients. Each component plays a crucial role in building the layers of flavor and texture that make this recipe unforgettable.

The Seafood Medley

For the best flavor, I recommend a combination of shrimp, sea scallops, and lump crab meat. This trio provides a wonderful mix of textures. Be sure to pat all your seafood completely dry before cooking to prevent a watery sauce.

The Creamy White Sauce

We skip the jarred stuff and make a classic béchamel sauce. It’s a simple mixture of butter, flour, milk, and seasonings. A hint of nutmeg is the secret ingredient that adds a warm, professional touch. It’s much simpler than it sounds and provides the perfect base for our Seafood Lasagna.

The Cheesy Layers

A blend of creamy ricotta, gooey mozzarella, and salty Parmesan creates the ultimate cheese pull. The ricotta adds a light, creamy texture to the filling, while the mozzarella provides that classic stretch and the Parmesan lends a sharp, nutty flavor. For a similar cheesy delight, you might also enjoy our Million Dollar Italian Lasagna.

A full 9x13 baking dish of homemade seafood lasagna, fresh out of the oven with a golden brown, bubbly cheese topping.
Fresh out of the oven and ready to impress!

How to Make Seafood Lasagna Step-by-Step

Making this dish is an exercise in layering flavors. We’ll build it component by component, resulting in a perfectly integrated and delicious final product.

  1. Prep the Seafood: Thaw any frozen seafood completely. Pat the shrimp and scallops very dry with paper towels. Roughly chop them into bite-sized pieces and sauté them lightly with garlic until just opaque. Do not overcook them, as they will finish cooking in the oven. Gently fold in the crab meat at the end.
  2. Cook the Noodles: Cook your lasagna noodles according to package directions until they are al dente. Drain them and lay them flat on parchment paper to prevent sticking.
  3. Make the Béchamel Sauce: In a saucepan, melt butter and whisk in flour to create a roux. Slowly pour in warm milk while whisking continuously to avoid lumps. Let it simmer until thickened, then season with salt, pepper, white pepper, and a pinch of nutmeg. Stir in Parmesan cheese until smooth.
  4. Mix the Ricotta Filling: In a bowl, combine the ricotta cheese, a portion of the shredded mozzarella, parsley, and an egg. Mix until well combined.
  5. Assemble Your Lasagna: Spread a thin layer of the white sauce on the bottom of your baking dish. Layer with noodles, a third of the ricotta mixture, a third of the seafood mixture, and another layer of white sauce. Repeat these layers two more times. Finish with a final layer of noodles, the remaining white sauce, and a generous topping of mozzarella and Parmesan cheese.
  6. Bake to Perfection: Cover the dish with foil and bake at 375°F (190°C) for 25 minutes. Then, remove the foil and bake for another 20-25 minutes, or until the top is golden brown and bubbly. Let it rest for 15 minutes before slicing.

Expert Tips for a Flawless Lasagna

Follow these tips to guarantee your Seafood Lasagna is a stunning success.

  • Don’t Crowd the Pan: Cook your seafood in batches to ensure it sears nicely rather than steams. This is crucial for developing flavor.
  • The Resting Period is Essential: Do not skip the 15-minute rest after baking. This allows the lasagna to set, ensuring you can cut clean, beautiful slices that hold their shape.
  • Shred Your Own Cheese: Pre-shredded cheeses are often coated with anti-caking agents that prevent them from melting smoothly. For the creamiest results, buy blocks of mozzarella and Parmesan and shred them yourself. If you love cheesy, comforting casseroles, our beef macaroni casserole is another must-try.

This recipe is incredibly rewarding. For another elegant seafood main course, consider this simple but delicious Pan-Seared Salmon recipe.

A thick, delicious slice of white seafood lasagna on a white plate, showcasing the creamy layers of pasta, seafood, and cheese.
Look at those incredible layers! Each bite is packed with seafood and creamy sauce.

What to Serve With Seafood Lasagna

This rich dish pairs beautifully with simple, fresh sides. A crisp green salad with a lemon vinaigrette is a perfect contrast. For something heartier, consider roasted asparagus or a side of crusty garlic bread to soak up any extra sauce. For another take on a classic Italian dish, try our Classic Beef Lasagna. If you love creamy chicken dinners, our Boursin Chicken and Orzo is another fan-favorite.

Storing and Reheating Your Masterpiece

Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, you can warm individual slices in the microwave, but for the best results, place the desired portion in an oven-safe dish, cover with foil, and bake at 350°F (175°C) for about 20 minutes, or until heated through.

Frequently Asked Questions

Yes. You can assemble the entire lasagna, cover it tightly with plastic wrap and foil, and refrigerate it for up to 24 hours before baking. You may need to add 10-15 minutes to the covered baking time if it’s going into the oven straight from the fridge.

Yes, you can absolutely use frozen seafood. Just make sure it is fully thawed before you begin. Most importantly, after thawing, press out as much excess water as possible and pat it very dry with paper towels.

The key is to manage moisture. First, pat all your seafood completely dry with paper towels before cooking. Second, briefly sauté the seafood just until it’s opaque—it will finish cooking in the oven. This prevents it from releasing excess water while baking.

A combination of cheeses works best. We use creamy ricotta for the filling, low-moisture mozzarella for that perfect cheese pull and golden top, and salty, nutty Parmesan cheese for depth of flavor in the sauce and on top.

A creamy white sauce, like a classic Béchamel or an Alfredo, is best for seafood lasagna. Its delicate, creamy flavor complements the seafood without overpowering it, unlike a traditional tomato-based red sauce which can clash with the flavors of the fish and shellfish.

The Perfect Seafood Lasagna Recipe

A thick, delicious slice of white seafood lasagna on a white plate, showcasing the creamy layers of pasta, seafood, and cheese.

Seafood Lasagna: The Ultimate Creamy & Decadent Recipe

This Seafood Lasagna is the ultimate indulgent meal, layering tender pasta with shrimp, scallops, and crab in a rich, creamy homemade white sauce. A foolproof, restaurant-quality dish that's perfect for impressing guests and creating special family memories.
Prep Time 30 minutes
Cook Time 50 minutes
Total Time 1 hour 20 minutes
Course Dinner, Main Course
Cuisine American, Italian
Servings 8 servings
Calories 650 kcal

Equipment

  • 1 9x13 inch baking dish
  • 1 Large skillet
  • 1 Large Pot
  • 1 Saucepan

Ingredients
  

For the Lasagna

  • 1 lb lasagna noodles
  • 1 lb large shrimp peeled, deveined, and roughly chopped
  • 1/2 lb sea scallops patted dry and roughly chopped
  • 8 oz lump crab meat picked over for shells
  • 15 oz ricotta cheese
  • 1 large egg lightly beaten
  • 1/4 cup fresh parsley chopped
  • 3 cups shredded mozzarella cheese divided

For the Creamy White Sauce

  • 6 tbsp unsalted butter
  • 2 cloves garlic minced
  • 1/2 cup all-purpose flour
  • 4 cups whole milk warmed
  • 1 cup grated Parmesan cheese divided
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/4 tsp white pepper
  • 1/8 tsp ground nutmeg

Instructions
 

  • Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
  • Cook the lasagna noodles according to package instructions until al dente. Drain and set aside.
  • In a large skillet over medium heat, melt 2 tbsp of butter. Add minced garlic and cook for 30 seconds until fragrant. Add the chopped shrimp and scallops and cook for 2-3 minutes until just opaque. Remove from heat and gently fold in the lump crab meat. Set aside.
  • In a large saucepan, melt the remaining 4 tbsp of butter over medium heat. Whisk in the flour and cook for 1 minute to form a roux. Gradually pour in the warm milk, whisking constantly to prevent lumps. Bring to a simmer and cook for 5-7 minutes, until the sauce has thickened. Remove from heat and stir in 1/2 cup of Parmesan cheese, salt, peppers, and nutmeg until the cheese is melted and the sauce is smooth.
  • In a medium bowl, mix together the ricotta cheese, beaten egg, chopped parsley, and 1 cup of the mozzarella cheese.
  • Spread about 1 cup of the white sauce on the bottom of the prepared baking dish. Arrange a layer of noodles on top. Spread half of the ricotta mixture over the noodles, followed by half of the seafood mixture. Top with about 1.5 cups of white sauce. Repeat the layers once more. Finish with a final layer of noodles, the remaining white sauce, and top with the remaining 2 cups of mozzarella and 1/2 cup of Parmesan cheese.
  • Cover the baking dish with aluminum foil and bake for 25 minutes. Remove the foil and bake for an additional 20-25 minutes, or until the top is golden brown and bubbly.
  • Let the lasagna rest for at least 15 minutes before cutting and serving. This helps it set and makes for cleaner slices.

Notes

Tip 1: Ensure your seafood is patted very dry before cooking to prevent the lasagna from becoming watery.
Tip 2: Warming the milk before adding it to the roux helps create a smoother, lump-free béchamel sauce.
Tip 3: Don't skip the resting time! It's crucial for allowing the layers to set properly.

Share Your Culinary Creation!

We are so excited for you to try this creamy, decadent Seafood Lasagna recipe. It’s a true labor of love that is worth every moment. If you make it, don’t forget to leave a comment below and share a photo of your masterpiece on Pinterest! We can’t wait to see your beautiful creations.

A beautiful overhead shot of a creamy seafood lasagna in a white baking dish, ready to be pinned. The title 'The Ultimate Seafood Lasagna' is written in elegant text.
The only Seafood Lasagna recipe you'll ever need. Perfect for special occasions!

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