Seafood Lasagna with Shrimp & Crab

This Seafood Lasagna with Shrimp & Crab is a rich, indulgent twist on the Italian classic—perfect for when I want to impress or treat myself to something decadent. Layers of tender shrimp, sweet crab meat, and creamy Alfredo sauce are nestled between sheets of pasta and topped with a gooey, golden trio of cheeses. It’s the ultimate comfort food for seafood lovers.

Why You’ll Love This Recipe

I love how luxurious and satisfying this lasagna is. The Alfredo sauce adds a smooth, buttery richness that pairs beautifully with the shrimp and crab. It’s loaded with flavor, perfectly cheesy, and makes an elegant yet comforting main dish. Whether I’m hosting a dinner party or craving a cozy weekend meal, this lasagna always feels special.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

• 9 lasagna noodles, cooked and drained

• 1 lb shrimp, peeled and deveined (chopped if large)

• 1 cup lump crab meat (picked over for shells)

• 2 cups Alfredo sauce (store-bought or homemade)

• 1½ cups shredded mozzarella cheese

• 1 cup ricotta cheese

• ½ cup grated Parmesan cheese

• 1 egg

• 1 tablespoon butter or olive oil

• 2 cloves garlic, minced

• Salt and pepper, to taste

• Chopped parsley, for garnish (optional)

Directions

1. Prepare the Seafood Filling

I heat butter or olive oil in a skillet over medium heat.
I add the garlic and sauté for about 30 seconds, then add the shrimp and cook until just pink—about 2–3 minutes.
I season lightly with salt and pepper and set it aside to cool.
Once cool, I combine the cooked shrimp with the crab meat in a bowl.

2. Make the Cheese Mixture

In a separate bowl, I mix the ricotta cheese, egg, and half of the Parmesan until smooth. I season it with a little salt and pepper.

3. Assemble the Lasagna

I preheat the oven to 375°F (190°C).
In a greased 9×13-inch baking dish, I spread a thin layer of Alfredo sauce on the bottom.
Then I layer 3 lasagna noodles, half of the ricotta mixture, half of the seafood, a layer of Alfredo sauce, and a sprinkle of mozzarella.
I repeat with another 3 noodles, the remaining ricotta mixture, remaining seafood, Alfredo sauce, and mozzarella.
I top with the final 3 noodles, the last of the Alfredo sauce, mozzarella, and the remaining Parmesan cheese.

4. Bake

I cover the dish loosely with foil and bake for 25 minutes.
Then I uncover and bake for another 15–20 minutes, or until bubbly and golden on top.
I let it rest for 10 minutes before slicing.
I garnish with chopped parsley before serving.

Servings and timing

This recipe makes about 6–8 servings.
Prep Time: 25 minutes
Cook Time: 40–45 minutes
Total Time: 1 hour 10 minutes

Variations

Sometimes I stir sautéed spinach or mushrooms into the ricotta layer for added flavor and texture. For a smoky kick, I use smoked mozzarella or add a pinch of smoked paprika. If I want it extra creamy, I double the Alfredo sauce and layer it more generously.

Storage/Reheating

Leftovers keep well in the fridge for up to 3 days. I reheat slices in the oven at 350°F or in the microwave, adding a splash of cream or sauce if it seems dry. It also freezes beautifully—either as individual portions or the whole pan.

FAQs

Can I use imitation crab?

Yes, I’ve used imitation crab in a pinch. It won’t have the same delicate flavor, but it still works well in the recipe.

Do I have to pre-cook the shrimp?

I like to cook it briefly to avoid overcooking in the oven. It also helps season the seafood filling better.

Can I make this ahead of time?

Absolutely. I assemble the lasagna a day in advance, cover it tightly, and refrigerate it. I just add a few extra minutes to the baking time.

What’s the best Alfredo sauce to use?

Homemade is great if I have the time, but I also use a good-quality jarred sauce. I just make sure it’s thick and flavorful.

Can I use no-boil lasagna noodles?

Yes, but I increase the Alfredo sauce slightly to ensure the noodles have enough moisture to soften as they bake.

Conclusion

Seafood Lasagna with Shrimp & Crab is a decadent, creamy, and comforting dish that never fails to impress. With layers of luscious Alfredo, delicate seafood, and melty cheese, it’s a perfect combination of elegance and home-cooked comfort. Whether I’m serving guests or treating myself, this recipe always feels like a celebration on a plate.