Seafood Lasagna (Shrimp & Crab)

Seafood lasagna is a luxurious twist on the classic Italian favorite, combining layers of tender pasta, rich béchamel sauce, and a decadent blend of shrimp, crab, and creamy cheeses. This dish balances comfort with elegance, making it perfect for both special occasions and upscale weeknight dinners. It’s a standout main course that brings together the delicate sweetness of shellfish and the richness of a white sauce to create a meal that’s both hearty and refined.

Unlike traditional beef lasagna, this version replaces tomato sauce with a velvety béchamel and swaps ground meat for a mix of lump crab meat and chopped shrimp. The result is a melt-in-your-mouth seafood pasta bake that’s elevated and flavor-packed. Recipes like this have become increasingly popular, and Pinterest’s collection of seafood lasagna dishes showcases countless takes—ranging from simple to gourmet. These recipes illustrate the versatility of seafood in Italian-inspired cuisine.

The use of shellfish like crab and shrimp introduces a refined, coastal flavor profile. According to Wikipedia’s article on crab meat, lump crab is prized for its tender texture and sweet, mild taste, making it ideal for baked pasta dishes. When paired with a white sauce and mozzarella, it enhances the dish’s richness without overwhelming it. This seafood lasagna offers a perfect balance—creamy, cheesy, and ocean-fresh all at once.

Why Seafood Lasagna Deserves a Spot at Your Table

Seafood lasagna offers a fresh, coastal alternative to the traditional red sauce version. Swapping ground beef for shrimp and lump crab meat brings a delicate, briny sweetness that pairs beautifully with a creamy béchamel sauce. These flavors, layered between tender lasagna noodles and rich cheeses, create a meal that’s both indulgent and surprisingly light.

Seafood-based lasagnas are increasingly popular as home cooks look for comfort food recipes that feel more elevated. Shrimp and crab are not only rich in flavor but also quick to cook, making this dish practical for a weekend meal or special gathering. If you’re new to working with shellfish, Wikipedia’s overview on shrimp explains their culinary uses, including how their firm texture makes them ideal for layered dishes like lasagna.

Layering seafood with white sauce and pasta also echoes classic French and Mediterranean dishes where creamy textures and ocean flavors coexist in perfect harmony. For more creative inspiration, Pinterest’s seafood lasagna boards feature dozens of ideas that highlight how this combination can be both rustic and gourmet.

This dish’s adaptability adds to its appeal—you can use fresh or frozen seafood, substitute different cheeses, or add spinach, mushrooms, or artichokes for more complexity. Whether served at a dinner party or holiday table, shrimp and crab lasagna makes an unforgettable impression.

Creamy Seafood Lasagna with Shrimp and Crab in White Alfredo Sauce

This Seafood Lasagna with Shrimp & Crab features layers of tender pasta, a creamy ricotta blend, rich béchamel sauce, and a delicate filling of sautéed shrimp and sweet lump crab. Baked until golden and bubbling, it’s an elegant, satisfying dish perfect for dinner parties or family gatherings.

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Ingredients Method Notes

Ingredients

1 tbsp olive oil
1 small onion finely chopped
3 cloves garlic minced
1 lb raw shrimp peeled, deveined, and chopped
1 cup lump crab meat check for shells
Salt and pepper to taste
1 tsp Old Bay seasoning optional
2 tbsp fresh parsley chopped
For the ricotta mixture:
1 ½ cups ricotta cheese
1 egg
½ cup grated Parmesan cheese
Salt and pepper to taste
For the béchamel white sauce:
4 tbsp butter
¼ cup all-purpose flour
3 cups whole milk
½ cup grated Parmesan cheese
Salt pepper, and a pinch of nutmeg
Other:
9 lasagna noodles cooked and drained
1 ½ cups shredded mozzarella cheese
Extra Parmesan for topping

Method

In a skillet over medium heat, heat the olive oil and sauté the onion for 3 to 4 minutes until soft. Add the garlic and cook for 30 seconds.
Add chopped shrimp and cook until just pink, about 3 minutes. Stir in crab meat, season with salt, pepper, Old Bay (if using), and fresh parsley. Remove from heat and set aside.
In a bowl, mix ricotta, egg, Parmesan, salt, and pepper until smooth. Set aside.
In a saucepan, melt the butter over medium heat. Whisk in the flour and cook for 1 to 2 minutes to form a roux. Slowly whisk in milk and bring to a simmer, stirring constantly until thickened. Stir in Parmesan, salt, pepper, and nutmeg. Remove from heat.
Preheat the oven to 375°F (190°C).
To assemble: Spread a small amount of béchamel sauce in the bottom of a 9x13 inch baking dish. Layer 3 lasagna noodles, half the ricotta mixture, half the seafood mixture, and a few spoonfuls of béchamel. Repeat with another layer of noodles, remaining ricotta, remaining seafood, and more béchamel.
Top with final layer of noodles, remaining béchamel sauce, shredded mozzarella, and extra Parmesan.
Cover with foil and bake for 25 minutes. Uncover and bake for another 10–15 minutes, or until top is golden and bubbling.
Let rest for 10 minutes before slicing and serving.

Notes

Always check crab meat for shells before using
Old Bay seasoning is optional but adds a delicious coastal kick
Let the lasagna rest before slicing to help it hold its shape
Use freshly shredded cheese for best melting results
This dish freezes well—assemble, wrap, and store before baking
For a spicy twist, add a pinch of red pepper flakes to the seafood mixture
Top with fresh parsley or lemon zest for a bright, fresh finish