Creamy Shrimp and Crab Lasagna for an Easy Lunch

Creamy Shrimp and Crab Lasagna – The Ultimate Comfort Food Dinner

In just over an hour, you can have a rich, creamy, and utterly satisfying seafood lasagna on the table that feels like a special occasion but is simple enough for a weeknight dinner. Layers of tender pasta, a velvety béchamel sauce, sweet shrimp, and lump crab meat come together in one baking dish for a meal that delivers comfort in every single bite.

This is the kind of dish that brings people to the table a little early, forks already in hand. I first made this creamy shrimp and crab lasagna for a small dinner party on a rainy evening in Charleston, and the pan was scraped clean before anyone even thought about dessert. That night, I knew this recipe had to become a regular in my rotation.

Why You’ll Love This Recipe

• Luxurious but approachable – restaurant-quality flavor without the fuss
• Perfect for entertaining – make it ahead and bake when guests arrive
• Two types of seafood – sweet shrimp and delicate crab create layers of flavor
• Creamy, not heavy – the béchamel sauce is rich but balanced
• Comfort food that feels special – the kind of meal that makes any night feel like a celebration

Ingredients

• 12 no-boil lasagna noodles
• 1 pound raw shrimp, peeled, deveined, and chopped
• 8 ounces lump crab meat, picked over for shells
• 4 tablespoons unsalted butter
• 4 cloves garlic, minced
• 1 shallot, finely diced
• 1/4 cup all-purpose flour
• 3 cups whole milk, warmed
• 1 cup heavy cream
• 1/2 cup chicken or seafood stock
• 1 cup grated Parmesan cheese, divided
• 1 cup shredded mozzarella cheese
• 1/2 cup ricotta cheese
• 1/4 cup chopped fresh parsley
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/4 teaspoon nutmeg, freshly grated
• 1/2 teaspoon red pepper flakes, optional
• 1 lemon, zested

Instructions

• Preheat your oven to 375°F and lightly grease a 9×13 baking dish with butter or nonstick spray.
• In a large skillet, melt 2 tablespoons of butter over medium heat and sauté the shallot and garlic until soft and fragrant, about 2 minutes.
• Add the chopped shrimp and cook just until pink, about 2 to 3 minutes. Remove from heat and set aside in a bowl.
• In the same skillet, melt the remaining 2 tablespoons of butter over medium heat and whisk in the flour. Cook for 1 minute, stirring constantly.
• Slowly pour in the warm milk while whisking continuously to avoid lumps. Add the heavy cream and stock, then continue whisking until the sauce thickens, about 4 to 5 minutes.
• Stir in 1/2 cup of the Parmesan cheese, salt, pepper, nutmeg, and lemon zest. Remove from heat.
• In a separate bowl, gently combine the cooked shrimp, lump crab meat, ricotta cheese, and half of the parsley.
• Spread a thin layer of the béchamel sauce onto the bottom of the prepared baking dish.
• Layer three lasagna noodles over the sauce, then spread one-third of the seafood mixture on top, followed by a generous spoonful of béchamel and a sprinkle of mozzarella and Parmesan.
• Repeat the layers – noodles, seafood, béchamel, cheese – three more times, finishing with a final layer of noodles, remaining béchamel, and all of the remaining mozzarella and Parmesan on top.
• Cover the dish loosely with foil and bake for 30 minutes. Remove the foil and bake for another 15 to 20 minutes, until the top is golden and bubbling.
• Let the lasagna rest for 10 minutes before slicing. Garnish with fresh parsley and serve warm.

Pro Tips

• Do not overcook the shrimp during the initial sauté – they will finish cooking in the oven, so a quick sear is all you need to keep them tender.
• Freshly grated nutmeg makes a real difference in the béchamel. A microplane or fine grater is perfect for this.
• Let the lasagna rest after baking for at least 10 minutes. If you cut into it too soon, the layers will slide apart instead of holding their shape.
• If you prefer a thicker sauce, let the béchamel simmer an extra minute or two before layering. It will thicken further as it bakes.
• Using no-boil noodles saves time and ensures the lasagna stays moist. Just make sure the sauce is thin enough to hydrate them fully.

Variations

• Replace the crab with cooked lobster meat for an even more decadent version of this seafood lasagna.
• Add a layer of sautéed spinach or chopped kale between the seafood and sauce for extra greens and color.
• Swap the mozzarella for provolone or fontina for a slightly different melt and flavor profile.
• For a spicy kick, add a teaspoon of Cajun seasoning to the béchamel and use andouille sausage in place of crab.

Frequently Asked Questions

• Can I make this seafood lasagna ahead of time? Yes, assemble the lasagna completely, cover it tightly, and refrigerate for up to 24 hours before baking. You may need to add 10 to 15 minutes to the baking time.
• Can I freeze creamy shrimp and crab lasagna? Absolutely. Assemble the lasagna in a freezer-safe dish, wrap it well, and freeze for up to 3 months. Thaw overnight in the fridge before baking.
• What is the best way to reheat leftovers? Cover individual portions with foil and warm in a 350°F oven for about 15 minutes. You can also microwave on medium power, though the texture is best from the oven.
• Can I use cooked shrimp from the store? Yes, but reduce the initial sauté time to just warm the shrimp through, as they only need to be reheated in the oven.
• Do I have to use no-boil noodles? No, you can use regular lasagna noodles if you prefer. Just boil them until al dente, drain, and layer as directed.
• Can I substitute the heavy cream for something lighter? You can use half-and-half or whole milk, but the sauce will be less rich. Add an extra tablespoon of flour to help maintain thickness.

More Recipes You’ll Love

• Cheesy Garlic Shrimp Cannelloni
• Blackened Cajun Catfish Shrimp Sausage Grits
• Sheet Pan Garlic Butter Crab Bites
• Creamy Garlic Shrimp Herbed Rice
• Honey Chili Crisp Shrimp Tacos

Shaykee

I’m Shaykee—born in Morocco, seasoned across continents. From airplane galleys to home kitchens, I share the flavors and stories that shaped my journey.