Seafood Lasagna

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Seafood Lasagna (Lasagnes aux Fruits de Mer)

A Creamy, Elegant Pasta Dish with Shrimp, Fish, and a Delicate White Sauce

Introduction

Seafood Lasagna, known in French as Lasagnes aux Fruits de Mer, is a refined variation of the traditional Italian lasagna. Instead of the classic meat sauce, this version features a luxurious mixture of shrimp, fish, and sometimes scallops or mussels, combined with a creamy béchamel sauce and tender pasta layers.

This dish is especially popular in coastal regions and Mediterranean cuisine, where fresh seafood is abundant. The creamy sauce enhances the delicate flavor of the seafood while the layers of pasta create a comforting, satisfying structure.

Seafood lasagna is perfect for special dinners, family gatherings, or festive occasions because it combines elegance with comfort. Despite its sophisticated taste, it is surprisingly easy to prepare if you follow the right steps.

This recipe will guide you through preparing the seafood filling, making a smooth béchamel sauce, assembling the layers, baking the lasagna, and serving it beautifully.

This recipe serves 4–6 people.



Ingredients

For the Seafood Filling

  • 250 g shrimp, peeled and deveined

  • 200 g white fish (cod, hake, or pollock), cut into small pieces

  • 150 g scallops or mussels (optional)

  • 1 tablespoon olive oil

  • 1 small onion, finely chopped

  • 2 cloves garlic, minced

  • 1 small leek, finely sliced (optional but recommended)

  • 100 ml dry white wine

  • 1 tablespoon lemon juice

  • 1 tablespoon chopped fresh parsley

  • Salt and black pepper to taste

For the Béchamel Sauce

  • 50 g butter

  • 50 g all-purpose flour

  • 600 ml milk

  • 1 pinch nutmeg

  • Salt and pepper to taste

  • 50 g grated Parmesan cheese

For the Lasagna Layers

  • 9–12 lasagna sheets (depending on the dish size)

  • 150 g shredded mozzarella cheese

  • 50 g grated Parmesan cheese

Optional Garnish

  • Fresh parsley

  • Lemon zest

  • Cracked black pepper

Equipment Needed

  • Large skillet or frying pan

  • Medium saucepan

  • Baking dish (about 30 × 20 cm)

  • Whisk

  • Wooden spoon

  • Knife and cutting board

  • Aluminum foil

Step-by-Step Preparation

Step 1: Prepare the Seafood

  1. If using frozen seafood, thaw completely and pat dry with paper towels.

  2. Cut fish into small bite-sized pieces.

  3. Leave shrimp whole or cut large shrimp in half.

Drying the seafood is important because excess water can make the lasagna sauce too thin.

Step 2: Cook the Aromatics

  1. Heat olive oil in a large skillet over medium heat.

  2. Add chopped onion and cook for 3–4 minutes until soft.

  3. Add sliced leek and cook another 3 minutes.

  4. Stir in garlic and cook for 30 seconds until fragrant.

These aromatics create a flavorful base for the seafood filling.

Step 3: Cook the Seafood Filling

  1. Add the fish pieces to the skillet and cook 2–3 minutes.

  2. Add shrimp and scallops or mussels.

  3. Pour in the white wine and let it simmer for 2 minutes.

The wine adds depth and enhances the seafood flavor.

  1. Season with salt, pepper, and lemon juice.

  2. Add chopped parsley.

  3. Remove from heat and set aside.

Do not overcook the seafood, as it will finish cooking in the oven.

Step 4: Prepare the Béchamel Sauce

  1. In a saucepan, melt butter over medium heat.

  2. Add flour and whisk continuously for 1–2 minutes to form a roux.

  3. Slowly pour in the milk while whisking constantly.

Continue cooking:

  1. Stir until the sauce thickens (about 4–5 minutes).

  2. Add nutmeg, salt, and pepper.

  3. Stir in Parmesan cheese.

The sauce should be smooth, creamy, and slightly thick.

Step 5: Combine Seafood and Sauce

Take about one-third of the béchamel sauce and mix it with the seafood filling.

This step ensures the seafood mixture is creamy and flavorful.

Step 6: Prepare the Baking Dish

  1. Preheat the oven to 180°C (350°F).

  2. Spread a thin layer of béchamel sauce on the bottom of the baking dish.

This prevents the pasta from sticking.

Step 7: Assemble the Lasagna

Layer the ingredients as follows:

First Layer

  • Lasagna sheets

  • Seafood mixture

  • Béchamel sauce

  • Mozzarella cheese

Second Layer

Repeat the same process.

Final Layer

  • Lasagna sheets

  • Remaining béchamel sauce

  • Mozzarella and Parmesan cheese

Ensure the top layer is well covered with sauce and cheese.

Step 8: Bake the Lasagna

  1. Cover the dish with aluminum foil.

  2. Bake for 25 minutes.

Then:

  1. Remove the foil.

  2. Bake another 10–15 minutes until golden and bubbly.

The top should become lightly browned and deliciously cheesy.

Step 9: Rest Before Serving

Allow the lasagna to rest for 10 minutes before slicing.

This helps the layers set and makes serving easier.

Chef’s Tips for Perfect Seafood Lasagna

Use Fresh Seafood

Fresh shrimp and fish give the best flavor and texture.

Avoid Overcooking

Seafood cooks quickly; overcooking can make it rubbery.

Balance the Sauce

The béchamel should be creamy but not too thick.

Add Herbs

Fresh parsley, dill, or chives enhance the seafood flavor.

Choose Quality Pasta

Good lasagna sheets hold the layers together perfectly.

Variations

Mediterranean Seafood Lasagna

Add:

  • Spinach

  • Cherry tomatoes

  • Basil

Salmon Seafood Lasagna

Replace white fish with salmon for a richer taste.

Lobster Seafood Lasagna

For a luxury version, add lobster meat.

Spicy Seafood Lasagna

Add:

  • Chili flakes

  • Cayenne pepper

  • Smoked paprika

Creamy Spinach Seafood Lasagna

Add sautéed spinach between layers for extra nutrition.

Nutritional Information (Approximate per serving)

Calories: 480 kcal
Protein: 32 g
Carbohydrates: 35 g
Fat: 22 g
Fiber: 2 g

Values vary depending on ingredients and portion sizes.

Frequently Asked Questions

Can I prepare seafood lasagna ahead of time?

Yes. Assemble the lasagna and refrigerate for up to 24 hours before baking.

Can I freeze seafood lasagna?

Yes. Wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before baking.

What seafood works best?

Great options include:

  • Shrimp

  • Cod

  • Haddock

  • Salmon

  • Scallops

  • Mussels

Can I use tomato sauce instead of béchamel?

You can, but traditional seafood lasagna usually uses white sauce because it complements seafood better.

How do I prevent watery lasagna?

  • Dry seafood well

  • Do not add too much liquid

  • Use thick béchamel sauce

Serving Suggestions

Seafood lasagna pairs well with:

  • Green salad with lemon vinaigrette

  • Garlic bread

  • Roasted vegetables

  • Steamed asparagus

Recommended drinks:

  • Dry white wine

  • Sparkling water with lemon

  • Light rosé wine

Storage and Reheating

Refrigeration

Store leftovers in an airtight container for up to 3 days.

Reheating

Reheat in the oven at 170°C (340°F) for 15 minutes.

Avoid microwaving if possible to preserve texture.

Conclusion

Lasagnes aux Fruits de Mer offer a delicious and elegant twist on traditional lasagna. The combination of tender seafood, creamy béchamel sauce, and perfectly baked pasta layers creates a dish that is both comforting and sophisticated.

Whether served for a family dinner, a special occasion, or a holiday meal, this seafood lasagna brings together rich flavors and a luxurious texture that everyone will enjoy.

With fresh ingredients and careful layering, you can easily create a restaurant-quality seafood lasagna at home that is sure to impress your guests.

Enjoy this beautiful dish that perfectly combines Italian comfort food with the delicate flavors of the sea.

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