Seafood Lasagna: The Ultimate Creamy & Rich Recipe

By Rowan Pierce

On February 10, 2026

A close-up shot of a generous slice of homemade seafood lasagna on a white plate. You can see the distinct layers of pasta, creamy white sauce, and seafood.

Cuisine

American, Italian

Prep time

25 minutes

Cooking time

50 minutes

Total time

75 minutes

Servings

8 servings

Welcome to the ultimate indulgence where classic Italian comfort food meets the delicate flavors of the sea. This Seafood Lasagna is a show-stopping dish, layering tender pasta with a luxurious, creamy white sauce and a generous mix of succulent shrimp and crab. If you’re looking to elevate your dinner game with a recipe that’s impressive enough for guests but secretly simple to prepare, you’ve found it. Forget watery or bland seafood pasta; this recipe guarantees a rich, flavorful, and perfectly baked lasagna every single time. It’s the perfect main course for a special occasion or a cozy weekend dinner.

Why You’ll Love This Seafood Lasagna Recipe

This isn’t just another pasta dish; it’s an experience. Here’s why this recipe will become a new favorite:

  • Unbelievably Creamy: We use a rich, homemade béchamel sauce as the base, infused with garlic and Parmesan for a velvety texture that clings to every layer.
  • Perfectly Balanced Flavors: The sweet notes of crab and shrimp are complemented by the savory cheese blend and a hint of Old Bay seasoning for a gentle warmth.
  • Surprisingly Simple: The steps are broken down into easy-to-manage stages, making the entire process straightforward and stress-free.
  • Make-Ahead Friendly: You can assemble it ahead of time, making it the perfect dish for entertaining without being stuck in the kitchen. For another great make-ahead meal, try this delicious Tater Tot Casserole.

The Key Ingredients for Perfect Seafood Lasagna

The magic of this dish lies in using quality ingredients. Here’s what you’ll need to create this masterpiece.

A beautiful shot of the entire seafood lasagna baked in its casserole dish, with a slice already served. The top is golden and bubbly.
Fresh out of the oven and ready to be devoured!

The Best Seafood Combination

  • Shrimp: Use raw, peeled, and deveined shrimp. Small to medium-sized shrimp work best as they distribute evenly throughout the layers.
  • Lump Crab Meat: This adds a sweet, delicate flavor that is the hallmark of a great seafood lasagna.

For the Creamy White Sauce

  • Butter & Flour: These form the roux that thickens our sauce.
  • Whole Milk & Heavy Cream: A combination of both creates a sauce that’s rich but not overly heavy.
  • Garlic & Onion: Finely minced aromatics build the flavor base.
  • White Wine: A splash of dry white wine like Sauvignon Blanc or Pinot Grigio deglazes the pan and adds depth. This is optional but highly recommended.
  • Seasoning: Old Bay seasoning, salt, black pepper, and a pinch of nutmeg are all you need.

Cheeses and Pasta

  • Oven-Ready Lasagna Noodles: To keep things easy, we use no-boil noodles. If you prefer traditional noodles, simply cook them according to package directions first.
  • Ricotta Cheese: Whole milk ricotta provides a creamy, classic lasagna texture.
  • Mozzarella & Parmesan Cheese: Freshly grated mozzarella melts beautifully, while Parmesan adds a sharp, nutty flavor.
  • Fresh Parsley: For a touch of freshness and color.

How to Make Seafood Lasagna: A Step-by-Step Guide

Follow these simple steps for a flawless seafood lasagna. We’ll start by preparing the seafood, then make the sauce, and finally assemble everything before baking.

Step 1: Prepare the Seafood

In a large skillet, melt a tablespoon of butter over medium heat. Add the shrimp and cook for 2-3 minutes until they are pink and opaque. Be careful not to overcook them. Remove the shrimp from the skillet and set aside. Gently fold the cooked shrimp and the lump crab meat together in a bowl.

Step 2: Make the Foolproof Creamy White Sauce

In the same skillet, melt the remaining butter. Add the minced onion and garlic, and sauté until softened and fragrant, about 3-4 minutes. Whisk in the flour and cook for one minute to create a roux. If using, pour in the white wine to deglaze the pan, scraping up any browned bits. Slowly whisk in the milk and heavy cream until the mixture is smooth. Let it simmer, whisking occasionally, until it thickens enough to coat the back of a spoon. Remove from heat and stir in the Parmesan cheese, Old Bay, salt, pepper, and nutmeg.

Step 3: Prepare the Cheese Filling

In a medium bowl, combine the ricotta cheese, half of the shredded mozzarella, and fresh parsley. Mix until well combined. This mixture will add another layer of creamy texture to your lasagna.

Step 4: Assemble Your Seafood Lasagna

Now for the fun part! Get your 9×13 inch baking dish ready.

  1. Spread a thin layer of the white sauce on the bottom of the dish.
  2. Arrange a single layer of lasagna noodles over the sauce.
  3. Spread half of the ricotta cheese mixture over the noodles.
  4. Top with half of the seafood mixture.
  5. Pour about one-third of the remaining white sauce over the seafood.
  6. Repeat the layers: noodles, the remaining ricotta mixture, the rest of the seafood, and another third of the sauce.
  7. Place the final layer of noodles on top, pour over the last of the white sauce, and sprinkle generously with the remaining mozzarella cheese.
A close-up shot of a generous slice of homemade seafood lasagna on a white plate. You can see the distinct layers of pasta, creamy white sauce, and seafood.
Look at those incredible layers! Each bite is packed with creamy sauce and delicious seafood.

Step 5: Bake to Golden Perfection

Cover the baking dish with foil and bake in a preheated oven at 375°F (190°C) for 30 minutes. Remove the foil and bake for another 15-20 minutes, or until the top is bubbly and golden brown. Let the lasagna rest for at least 15 minutes before slicing and serving. This is crucial for allowing the layers to set.

Pro Tips for a Restaurant-Quality Result

  • Don’t Overcook the Seafood: Remember the seafood will cook again in the oven, so cook it just enough in the initial step.
  • Grate Your Own Cheese: Pre-shredded cheese contains anti-caking agents that prevent it from melting as smoothly. For the best cheesy pull, grate it yourself.
  • Let it Rest: This is the most important tip! Letting the lasagna sit before cutting allows the layers to set, ensuring you get clean, beautiful slices instead of a sloppy mess. If you’re looking for another comforting dish that holds its shape, this Mississippi Pot Roast is a fan favorite.

What to Serve with Seafood Lasagna

This rich and creamy seafood lasagna pairs wonderfully with simple, fresh sides. A crisp green salad with a lemon vinaigrette, steamed asparagus, or some crusty garlic bread are all excellent choices to complete the meal. If you’re a fan of garlic bread, you’ll love these Garlic Cheese Bombs.

Frequently Asked Questions

Absolutely! You can assemble the entire lasagna, cover it tightly, 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 use frozen seafood. Make sure to thaw it completely and pat it very dry with paper towels before cooking. This helps prevent the lasagna from becoming watery.

The key is to ensure your sauce is properly thickened and that you pat your seafood dry after thawing (if frozen). Also, letting the lasagna rest for at least 15 minutes after baking allows the layers to set and absorb excess moisture.

A combination of medium-sized shrimp and lump crab meat provides a wonderful balance of flavor and texture. You can also use scallops or lobster, but be sure not to overcook them.

This recipe uses a classic homemade béchamel sauce, which is a creamy white sauce made from a roux (butter and flour) and milk. It’s enriched with heavy cream, garlic, and Parmesan cheese for extra flavor.

The Ultimate Creamy Seafood Lasagna Recipe

A close-up shot of a generous slice of homemade seafood lasagna on a white plate. You can see the distinct layers of pasta, creamy white sauce, and seafood.

Seafood Lasagna: The Ultimate Creamy & Rich Recipe

This Seafood Lasagna recipe features tender layers of pasta, a rich and creamy white sauce, and a delicious blend of shrimp and crab. An impressive yet easy-to-make dish perfect for any occasion.
Prep Time 25 minutes
Cook Time 50 minutes
Total Time 1 hour 15 minutes
Servings: 8 servings
Course: Dinner, Main Course
Cuisine: American, Italian
Calories: 650

Ingredients
  

  • 1 lb shrimp peeled and deveined
  • 8 oz lump crab meat
  • 6 tbsp butter divided
  • 1 small onion finely minced
  • 4 cloves garlic minced
  • 1/3 cup all-purpose flour
  • 1/4 cup dry white wine optional
  • 3 cups whole milk
  • 1 cup heavy cream
  • 1 tsp Old Bay seasoning
  • 1/4 tsp nutmeg
  • 12 oven-ready lasagna noodles
  • 15 oz ricotta cheese
  • 2 cups mozzarella cheese shredded
  • 1 cup Parmesan cheese grated
  • 1/4 cup fresh parsley chopped
  • Salt and black pepper to taste

Equipment

  • 1 9x13 inch baking dish
  • 1 Large Skillet
  • 1 Large pot For the sauce.

Method
 

  1. Preheat your oven to 375°F (190°C). In a large skillet, melt 1 tbsp of butter over medium heat. Cook the shrimp for 2-3 minutes until just pink. Remove from skillet and set aside. In a bowl, gently combine the cooked shrimp and lump crab meat.
  2. In the same skillet, melt the remaining 5 tbsp of butter. Sauté the minced onion and garlic until soft. Whisk in the flour to form a roux and cook for 1 minute. If using, add the white wine to deglaze. Gradually whisk in the milk and heavy cream until smooth. Simmer until thickened. Remove from heat and stir in the Parmesan cheese, Old Bay, nutmeg, salt, and pepper.
  3. In a separate bowl, mix together the ricotta cheese, 1 cup of the mozzarella cheese, and the chopped fresh parsley.
  4. Spread a thin layer of white sauce in a 9x13 inch baking dish. Layer with noodles, half of the ricotta mixture, half of the seafood, and a third of the white sauce. Repeat the layers. Top with a final layer of noodles, the remaining sauce, and the rest of the mozzarella cheese.
  5. Cover with foil and bake for 30 minutes. Remove the foil and bake for another 15-20 minutes until the top is bubbly and golden. Let it rest for 15 minutes before slicing and serving.

Notes

Tip 1: Do not overcook the shrimp in the initial step as it will cook further in the oven.
Tip 2: Resting the lasagna after baking is crucial. It allows the layers to set, which makes slicing much cleaner.
Tip 3: For the best flavor and melt, grate your own mozzarella and Parmesan cheese.

Share This Amazing Recipe!

I hope you love this creamy seafood lasagna as much as I do! It’s a true labor of love that’s worth every second. If you make it, please leave a comment below and let me know how it turned out. Don’t forget to share it with your friends and family on Pinterest!

A top-down view of a fully baked Seafood Lasagna in a white baking dish, ready to be pinned. The top is golden brown and bubbly.
Save this recipe! The creamiest, richest Seafood Lasagna you'll ever make.

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