Seafood Lasagna with Shrimp and Crab is a rich, creamy, and comforting baked pasta dish that combines tender shrimp, sweet crab meat, silky homemade white sauce, melted cheese, and perfectly layered lasagna noodles. Unlike traditional beef lasagna, this seafood version offers a luxurious flavor that feels restaurant-quality while remaining surprisingly simple to prepare at home. Whether you’re planning a holiday dinner, family gathering, date night, or weekend comfort meal, this seafood lasagna delivers incredible flavor in every bite.

Made with juicy shrimp, delicate crab meat, Parmesan, mozzarella, ricotta, and a creamy garlic Alfredo-style sauce, this recipe creates layers of irresistible seafood goodness. It’s perfect for seafood lovers who want an elegant dinner that’s both filling and impressive.

Why You’ll Love This Seafood Lasagna with Shrimp and Crab

• Rich and creamy white sauce
• Loaded with tender shrimp and sweet crab meat
• Restaurant-quality dinner made at home
• Great for holidays and special occasions
• Easy to prepare ahead of time
• Freezer-friendly
• Perfect balance of cheese and seafood
• Family-friendly comfort food

What Makes Seafood Lasagna Different?

Traditional lasagna uses beef and tomato sauce. Seafood lasagna replaces red sauce with a creamy garlic Parmesan béchamel or Alfredo-style sauce and features shrimp, crab, and sometimes scallops or lobster.

The result is a lighter yet incredibly rich dish with delicate seafood flavors instead of bold tomato acidity.

Ingredients

For the Seafood Filling

• 1 pound large shrimp, peeled and deveined
• 8 ounces lump crab meat
• 2 tablespoons butter
• 4 garlic cloves, minced
• 1 teaspoon Old Bay seasoning
• ½ teaspoon paprika
• Salt to taste
• Black pepper
• 2 tablespoons chopped parsley

For the Cream Sauce

• 6 tablespoons butter
• 6 tablespoons all-purpose flour
• 4 cups whole milk
• 1 cup heavy cream
• 1½ cups grated Parmesan cheese
• 1 teaspoon Italian seasoning
• ½ teaspoon onion powder
• ½ teaspoon garlic powder
• Salt and pepper

Cheese Layer

• 15 ounces ricotta cheese
• 2 cups shredded mozzarella
• ½ cup Parmesan
• 1 egg
• 2 tablespoons parsley

Pasta

• 12 lasagna noodles, cooked according to package directions

Kitchen Equipment

• 9×13-inch baking dish
• Large skillet
• Saucepan
• Mixing bowls
• Whisk
• Wooden spoon
• Aluminum foil

How to Prepare the Seafood

Pat the shrimp dry before cooking.

Heat butter in a skillet.

Add garlic and cook for 30 seconds.

Add shrimp.

Season with:

• Old Bay
• Paprika
• Salt
• Pepper

Cook about 2 minutes per side.

Do not overcook.

Remove from heat.

Roughly chop the shrimp into bite-sized pieces.

Fold in the lump crab meat gently.

Sprinkle parsley.

Set aside.

Make the Creamy Garlic Sauce

Melt butter in a saucepan.

Whisk in flour.

Cook for 2 minutes.

Slowly pour in milk while whisking continuously.

Add heavy cream.

Cook until thick.

Stir in:

• Parmesan cheese
• Garlic powder
• Onion powder
• Italian seasoning

Season with salt and pepper.

The sauce should be smooth, creamy, and thick enough to coat the back of a spoon.

Prepare the Cheese Mixture

Mix together:

• Ricotta
• Egg
• Parmesan
• Parsley

Stir until smooth.

How to Assemble Seafood Lasagna

Spread a thin layer of cream sauce in the baking dish.

Add lasagna noodles.

Spread ricotta mixture.

Add seafood mixture.

Pour cream sauce.

Sprinkle mozzarella.

Repeat the layers.

Finish with:

• Remaining cream sauce
• Mozzarella
• Parmesan

Baking Instructions

Cover with foil.

Bake at 375°F (190°C) for 35 minutes.

Remove foil.

Bake another 20 minutes until golden brown.

Allow the lasagna to rest for 15 minutes before slicing.

This helps the layers hold together beautifully.

Tips for Perfect Seafood Lasagna

Don’t Overcook the Shrimp

Shrimp continue cooking in the oven.

Cook them only until slightly pink.

Use Quality Crab Meat

Fresh lump crab gives the best flavor.

Good-quality canned crab also works.

Avoid imitation crab if possible.

Thick Sauce Matters

A watery sauce leads to runny lasagna.

Cook until the sauce is rich and creamy.

Let It Rest

Fresh from the oven, the layers are loose.

Resting allows everything to firm up.

Best Cheese Choices

The combination creates the perfect texture:

• Ricotta for creaminess
• Mozzarella for stretch
• Parmesan for sharp flavor

Some cooks also add:

• Fontina
• Gruyère
• Provolone

Flavor Variations

Lobster Seafood Lasagna

Replace some shrimp with cooked lobster meat.

Cajun Seafood Lasagna

Add:

• Cajun seasoning
• Bell peppers
• Green onions

Spinach Seafood Lasagna

Layer fresh spinach between noodles.

Mushroom Seafood Lasagna

Sauté mushrooms with garlic before assembling.

Four Cheese Seafood Lasagna

Use:

• Mozzarella
• Parmesan
• Fontina
• Gruyère

Make Ahead Instructions

Assemble the lasagna one day ahead.

Cover tightly.

Refrigerate overnight.

Bake fresh the next day.

Perfect for holidays and entertaining.

Freezing Instructions

Freeze before baking for up to 3 months.

Wrap tightly with plastic wrap and foil.

Thaw overnight in the refrigerator.

Bake as directed

Storage

Refrigerate leftovers in an airtight container.

Keeps fresh for 4 days.

Reheat in the oven at 350°F until heated through.

Microwave individual portions for quick lunches

What to Serve with Seafood Lasagna

This creamy pasta pairs wonderfully with:

• Garlic bread
• Caesar salad
• Roasted asparagus
• Steamed broccoli
• Lemon green beans
• Fresh garden salad
• Roasted Brussels sprouts

For beverages, sparkling water with lemon, iced tea, or a crisp white wine complement the seafood flavors beautifully.

Common Mistakes to Avoid

• Overcooking shrimp
• Using watery crab meat
• Thin cream sauce
• Skipping the resting time
• Overfilling each layer
• Forgetting to season the sauce

Nutrition (Approximate Per Serving)

• Calories: 620
• Protein: 39g
• Carbohydrates: 34g
• Fat: 36g
• Saturated Fat: 19g
• Fiber: 2g
• Sugar: 7g
• Sodium: 920mg
• Calcium: 38% DV
• Iron: 14% DV

Why This Recipe Is Perfect for Entertaining

Seafood Lasagna with Shrimp and Crab looks elegant enough for celebrations yet is comforting enough for family dinners. Because it can be prepared ahead of time, hosts can spend less time in the kitchen and more time with guests. The creamy layers, tender seafood, and golden cheese topping create a dish that feels indulgent without requiring advanced cooking skills.

Its versatility also makes it ideal for holidays, birthdays, anniversaries, or cozy weekend meals. Pair it with a fresh salad and warm garlic bread, and you have a complete restaurant-worthy menu at home.

Final Thoughts

If you’re looking for a luxurious comfort food that combines creamy cheese, buttery garlic sauce, and flavorful seafood, Seafood Lasagna with Shrimp and Crab is an unbeatable choice. Each layer is packed with succulent shrimp, sweet crab meat, velvety Parmesan sauce, and perfectly melted cheese, creating a hearty meal that’s guaranteed to impress. Whether you’re making it for a festive gathering or simply treating your family to something special, this seafood lasagna is a recipe you’ll come back to again and again.