Seafood Lasagna: The Ultimate Creamy & Delicious Recipe

This is truly the ultimate Seafood Lasagna recipe. If you’ve been searching for a show-stopping dish that combines tender seafood, a rich and creamy white sauce, and perfectly cooked pasta, you’ve found it. This recipe is designed to be decadent, flavorful, and surprisingly straightforward to assemble. It’s the perfect centerpiece for a special occasion, a holiday meal, or just a weekend dinner when you’re craving something truly spectacular. Forget watery, bland seafood pasta; this version is all about luxurious texture and incredible taste.

We are going to walk through every step, from selecting the best seafood to making a foolproof béchamel sauce that guarantees a creamy, not runny, result. Get ready to create a restaurant-quality meal in your own kitchen that will have everyone asking for the recipe.

Why You’ll Love This Creamy Seafood Lasagna

There are so many reasons this seafood lasagna recipe will become a new favorite. It’s a unique and elegant twist on the classic Italian dish, perfect for impressing guests. The creamy white sauce beautifully complements the delicate flavors of the shrimp and crab without overpowering them.

• Incredibly Flavorful: A rich, savory white sauce infused with garlic, herbs, and cheese is the perfect base for the sweet seafood.
• Perfectly Creamy Texture: We’ll show you how to make a thick, stable béchamel sauce that ensures your lasagna has beautiful layers and isn’t watery.
• Great for Special Occasions: While easy enough for a weekend, this dish feels special and is perfect for holidays, anniversaries, or dinner parties.
• Customizable: You can easily adapt the seafood mix based on what’s fresh and available near you.

Ingredients You’ll Need

A great dish starts with great ingredients. Here’s what you’ll need to gather for this creamy seafood lasagna. We’re breaking it down by component to keep things organized.

For the Seafood Filling

• Shrimp: One pound of large shrimp, peeled, deveined, and with tails removed. Chop them into bite-sized pieces.
• Crab Meat: One pound of lump crabmeat. Be sure to pick through it for any shell fragments.
• Butter: Used to sauté the aromatics and seafood.
• Garlic: Freshly minced garlic provides the best flavor.
• Old Bay Seasoning: The classic seafood seasoning that adds a touch of spice and depth.

For the Creamy White Sauce (Béchamel)

• Butter: The base of our roux, which thickens the sauce.
• All-Purpose Flour: The other half of the roux.
• Whole Milk & Heavy Cream: A combination of both creates an ultra-rich and creamy sauce.
• Nutmeg: A pinch of freshly grated nutmeg is the secret ingredient in a great béchamel.
• Parmesan Cheese: Freshly grated Parmesan adds a salty, nutty flavor right into the sauce.
• Salt & Black Pepper: To taste.

For Assembly

• Lasagna Noodles: Use 12-15 no-boil (oven-ready) lasagna noodles for ease, or use classic noodles and cook them al dente according to package directions.
• Ricotta Cheese: Whole milk ricotta provides the best texture.
• Mozzarella Cheese: Freshly shredded low-moisture, whole milk mozzarella melts best.
• Fresh Parsley: For a fresh, vibrant finish.

How to Make Seafood Lasagna Step-by-Step

Follow these simple steps to create a perfect seafood lasagna. We’ll build the components first and then assemble our delicious masterpiece.

Step 1: Prepare the Seafood

In a large skillet, melt two tablespoons of butter over medium heat. Add the minced garlic and cook for about 30 seconds until fragrant. Add the chopped shrimp and cook for 2-3 minutes, just until they turn pink. Be careful not to overcook them. Gently fold in the lump crabmeat and Old Bay seasoning, and cook for another minute. Remove the seafood from the skillet and set it aside.

Step 2: Make the Creamy White Sauce

In the same skillet (or a large saucepan), melt the butter for the sauce over medium heat. Whisk in the flour and cook for one minute to create a roux. Slowly pour in the whole milk while whisking continuously to prevent lumps. Add the heavy cream and continue to cook, stirring frequently, until the sauce thickens enough to coat the back of a spoon (about 5-7 minutes). Remove from the heat and stir in the Parmesan cheese, nutmeg, salt, and pepper.

Step 3: Combine Seafood and Sauce

Gently fold the cooked seafood mixture into the creamy white sauce. Your rich and flavorful filling for the Seafood Lasagna is now ready. This mixture should be thick and decadent.

Step 4: Assemble Your Lasagna

Preheat your oven to 375°F (190°C). Spread a thin layer (about 1 cup) of the seafood sauce on the bottom of a 9×13 inch baking dish. Arrange a single layer of lasagna noodles over the sauce. Spread one-third of the remaining seafood sauce over the noodles, followed by dollops of ricotta cheese and a sprinkle of mozzarella. Repeat the layers two more times: noodles, sauce, ricotta, and mozzarella. Finish with a final layer of noodles, the last of the sauce, and a generous layer of mozzarella cheese on top.

Step 5: Bake to Perfection

Cover the baking dish with foil and bake for 30 minutes. Remove the foil and bake for another 15-20 minutes, or until the top is golden brown and bubbly. Let the lasagna rest for at least 15 minutes before slicing and serving. This is crucial for allowing the layers to set. Garnish with fresh parsley before serving.

Tips for the Best Seafood Lasagna

Want to make sure your lasagna is absolutely perfect? Here are a few tips from our kitchen to yours.

• Don’t Overcook the Seafood: The seafood will cook again in the oven, so sauté it just until the shrimp is pink. This prevents it from becoming tough.
• Let it Rest: This is the most important tip! Letting the lasagna sit for 15-20 minutes after baking allows the layers to firm up, making it much easier to cut clean slices.
• Shred Your Own Cheese: Pre-shredded cheese is often coated with anti-caking agents that prevent it from melting smoothly. For the best gooey, melted cheese, buy blocks and shred them yourself.
• Check for Seasoning: Taste your white sauce before assembling. It’s your last chance to adjust the salt, pepper, or nutmeg to your liking.

Recipe Variations & Substitutions

This recipe is fantastic as is, but you can easily customize it. For a different flavor profile, consider adding scallops to the seafood mix. If you want to add some vegetables, sautéed spinach or mushrooms can be added to the layers. For a little heat, a pinch of red pepper flakes in the white sauce works wonders.

For more dinner inspiration, you might love this Creamy Cajun Chicken or our fan-favorite Garlic Parmesan Crusted Halibut.

Storing and Reheating Instructions

Seafood lasagna stores beautifully. Cover the leftovers tightly or transfer them to an airtight container and refrigerate for up to 3 days. To reheat, you can warm individual slices in the microwave or cover the baking dish with foil and heat in a 350°F oven until warmed through.

Thinking about another pasta night? This Chicken Bacon Ranch Pasta is always a huge hit.

Frequently Asked Questions About Seafood Lasagna

The Ultimate Creamy Seafood Lasagna Recipe

Seafood Lasagna: The Ultimate Creamy & Delicious Recipe

This Seafood Lasagna is the ultimate comfort food, featuring layers of pasta, a rich and creamy white sauce, and a delicious mix of shrimp and crab. It's a perfect show-stopping dinner for any occasion.

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 20 minutes mins

Servings: 8 servings

Course: Dinner, Main Course

Cuisine: American, Italian-American

Calories: 650

Ingredients Equipment Method Notes

Ingredients

  

Seafood Filling

• 1 lb large shrimp peeled, deveined, and chopped
• 1 lb lump crabmeat picked for shells
• 2 tbsp butter
• 3 cloves garlic minced
• 1 tsp Old Bay Seasoning

Creamy White Sauce

• 1/2 cup butter
• 1/2 cup all-purpose flour
• 3 cups whole milk
• 1 cup heavy cream
• 1 cup Parmesan cheese freshly grated
• 1/4 tsp nutmeg freshly grated
• 1 tsp salt or to taste
• 1/2 tsp black pepper or to taste

Assembly

• 12 no-boil lasagna noodles
• 15 oz ricotta cheese
• 2 cups mozzarella cheese shredded
• 2 tbsp fresh parsley chopped, for garnish

Equipment

• 1 9x13 inch Baking Dish
• 1 Large Skillet
• 1 Large saucepan

Instructions

 

1. Preheat oven to 375°F (190°C).
2. In a large skillet, melt 2 tbsp of butter over medium heat. Add minced garlic and cook until fragrant, about 30 seconds. Add the chopped shrimp and cook for 2-3 minutes until pink. Gently fold in the crabmeat and Old Bay seasoning. Cook for 1 minute more. Remove seafood and set aside.
3. In the same skillet, melt 1/2 cup of butter for the sauce. Whisk in the flour and cook for 1 minute to create a roux. Slowly pour in the milk and heavy cream while whisking constantly. Cook, stirring, until the sauce thickens, about 5-7 minutes.
4. Remove the sauce from heat and stir in the Parmesan cheese, nutmeg, salt, and pepper.
5. Gently fold the cooked seafood mixture back into the creamy white sauce.
6. To assemble, spread 1 cup of the seafood sauce in the bottom of a 9x13 inch baking dish. Layer with lasagna noodles, one-third of the remaining sauce, dollops of ricotta, and a sprinkle of mozzarella.
7. Repeat the layers two more times. Finish with a final layer of noodles, the rest of the sauce, and a generous topping of mozzarella cheese.
8. Cover with foil and bake for 30 minutes. Remove the foil and bake for an additional 15-20 minutes, until the top is golden and bubbly.
9. Let the lasagna rest for 15-20 minutes before slicing. Garnish with fresh parsley and serve.

Notes

Do not overcook the seafood: It cooks again in the oven, so just cook the shrimp until pink to avoid a rubbery texture.
Let it rest: This is crucial! Resting allows the layers to set, ensuring clean, beautiful slices.
Shred your own cheese: Freshly shredded cheese melts much better than pre-shredded varieties.

Share This Delicious Recipe!

We hope you love this creamy seafood lasagna as much as we do! If you make it, please let us know how it turned out in the comments below. Don’t forget to save this recipe to your favorite board on Pinterest!