Creamy Seafood Lasagna Bake

Category: Evening Meals That Deliver Results

Enjoy a decadent comfort meal with layers of tender pasta, creamy ricotta blended with egg, succulent shrimp and crab, and a silky Parmesan sauce. Mozzarella melts throughout each layer, and a touch of dried herbs deepens the savory notes. This elegant seafood bake comes together easily and bakes until golden and bubbling, offering a rich dish that's perfect for gatherings or a weeknight indulgence. Consider swapping in lobster for an elevated twist, or spinach for freshness. Perfectly creamy and satisfying every time.

Sarah Crisp
Recipe By Sarah Crisp Sarah Crisp
Last updated on Sun, 07 Sep 2025 19:08:26 GMT
A creamy seafood lasagna on a plate. Pin
A creamy seafood lasagna on a plate. | cookrisp.com

This creamy seafood lasagna brings cozy comfort and luxury to your dinner table blending ricotta cheese shrimp crab and a rich Parmesan sauce between tender pasta layers. Decadently satisfying it is perfect for special gatherings or a self indulgent weekend treat.

I have made this for family reunions and even folks who claimed not to like seafood always ended up coming back for seconds. I remember one Easter I was out of ground beef and decided to experiment with seafood for our lasagna tradition my sister still asks for this version every spring.

Gather Your Ingredients

  • Lasagna noodles: give structure and soak up the creamy sauce use classic or oven ready noodles for convenience
  • Butter: builds the base of your sauce always choose real butter for the best flavor
  • Small onion: adds a touch of sweetness finely chop for an even cook
  • Garlic: gives aromatic dimension fresher garlic makes for a more fragrant sauce
  • All-purpose flour: thickens the sauce just enough for perfect layering look for unbleached flour for better results
  • Milk: brings lush creaminess whole milk makes this extra indulgent
  • Chicken broth: adds depth and keeps the sauce from being too heavy opt for low sodium to control saltiness
  • Salt and black pepper: balance the flavors measure carefully to avoid overseasoning
  • Dried basil and oregano: lift up the seafood and tie in Italian notes make sure your spices are fresh for maximum flavor
  • Grated Parmesan cheese: infuses the sauce with a salty savory bite real Parmesan melts best and brings richness
  • Shredded mozzarella cheese: on top gives that classic lasagna ooze buy a block and shred it for maximum melt
  • Ricotta cheese: creates creamy layers try to find whole milk ricotta for a richer taste
  • Large egg: binds the ricotta filling together and helps it set nicely
  • Cooked shrimp: gives sweet briny flavor chop so you get a bit in every bite buy peeled and deveined for convenience
  • Imitation crab meat: blends seamlessly with shrimp for a seafood medley look for high quality brands with real crab
  • Chopped spinach (optional): adds color and pairs well with seafood fresh or frozen both work

How to Make It

Prepare the Pasta:
Cook the lasagna noodles in boiling salted water until just tender and pliable then drain and lay them flat on a towel so they do not stick together. This step ensures the layers will be even and easy to assemble.
Make the Parmesan Sauce:
Melt the butter in a deep skillet over medium heat then add the finely chopped onion and garlic. Sauté gently for about three to four minutes until they become translucent and fragrant but not browned. Sprinkle in the flour and keep stirring for at least a minute to cook it out fully you do not want any raw taste. Slowly whisk in the milk followed by the chicken broth pouring steadily while whisking to keep lumps away. Add the salt pepper basil and oregano and let the sauce gently simmer for about five to seven minutes stirring often until it thickens to a smooth creamy consistency. Stir in the grated Parmesan which will melt instantly enriching the sauce. Remove from heat and set aside.
Prepare the Ricotta Filling:
In a medium bowl combine the ricotta cheese with the egg mixing until smooth and creamy. This creates a spreadable filling that helps the lasagna hold together.
Layer the Lasagna:
Spoon a light layer of the Parmesan sauce on the bottom of a large baking dish to prevent sticking. Lay down your first three noodles so they slightly overlap. Spread half of the ricotta mixture over the noodles then scatter with half of the chopped shrimp and crab. If you choose to add spinach sprinkle a nice layer for fresh flavor and color. Top with one third of the shredded mozzarella. Repeat for a second layer starting with noodles then continue with the cheese and seafood. Finish with a final noodle layer smothered in the rest of the sauce and scatter the last of the mozzarella over the top.
Bake:
Cover the dish tightly with foil and bake at three hundred fifty degrees Fahrenheit for thirty minutes to let the flavors meld and everything heat through evenly. Then remove the foil and bake uncovered for an additional ten to fifteen minutes until the top bubbles and turns gently golden. For the best slice let the lasagna cool undisturbed for ten minutes so it sets up perfectly.
A stack of lasagna with cheese and vegetables.
A stack of lasagna with cheese and vegetables. | cookrisp.com

My favorite ingredient here is the shrimp because it brings that sweet briny bite that instantly says this is something special. Once when my little nephew helped me layer in the seafood he ate so many shrimp from the bowl I almost did not have enough left for the top layer.

Flavor Boosters

Pairs well with bright salads or crisp white wine. Storage tip store leftovers in an airtight container in the refrigerator for up to three days and reheat gently. For ingredient twists swap imitation crab for real crab or lobster or mix with scallops or white fish. Use fresh herbs like parsley or dill for color and freshness.

Serving Suggestions

This lasagna shines with a green salad with lemony vinaigrette and crusty bread. For drinks try zesty sauvignon blanc or sparkling lemonade to balance the creamy richness.

Creative Twists

Seafood lasagna is an Italian American riff on the classic red version. For a spring touch use fresh spinach and young shrimp; in winter add chopped fennel. Assemble ahead and freeze for a ready meal. Use freshly grated cheese and let the lasagna rest before slicing—do not skimp on seasoning.

A stack of lasagna with cheese and vegetables.
A stack of lasagna with cheese and vegetables. | cookrisp.com

If you have ever wondered if seafood and cheese could really work together this dish will make you a believer. Its unexpected decadence keeps everyone coming back for more.

Common Questions About This Recipe

→ Can I use fresh crab instead of imitation crab?

Absolutely! Fresh crab will provide an even more pronounced seafood flavor and tender texture in the dish.

→ How do I prevent the noodles from sticking together?

Cook noodles according to package directions and rinse briefly with cool water. Drizzle lightly with olive oil if desired.

→ Can I make this dish ahead of time?

Yes, you can assemble it a day in advance and refrigerate. Bake when ready to serve for best results.

→ What other seafood can I add?

Scallops, lobster, or a mix of shellfish work well for added flavor and variety in the layers.

→ How should leftovers be stored?

Store cooled portions covered in the refrigerator for up to three days. Reheat gently to maintain creaminess.

Creamy Seafood Lasagna Bake

Tender noodles layered with creamy ricotta, shrimp, crab, and melted cheese for a rich seafood delight.

Prep Time
25 minutes
Time to Cook
45 minutes
Complete Time
70 minutes
Recipe By Sarah Crisp: Sarah Crisp

Recipe Type: Dinner Victories

Level of Difficulty: Moderate Difficulty

Cuisine Style: Italian-American

Makes: 8 Number of Servings

Dietary Categories: ~

Ingredients You’ll Need

→ Pasta

01 9 lasagna noodles

→ Sauce Base

02 2 tablespoons unsalted butter
03 1 small onion, finely chopped
04 2 cloves garlic, minced
05 1/4 cup all-purpose flour
06 2 cups whole milk
07 1 cup chicken broth
08 1/2 teaspoon kosher salt
09 1/4 teaspoon freshly ground black pepper
10 1/4 teaspoon dried basil
11 1/4 teaspoon dried oregano

→ Cheeses

12 1/2 cup grated Parmesan cheese
13 1 cup shredded mozzarella cheese
14 1 cup ricotta cheese
15 1 large egg

→ Seafood Filling

16 1/2 pound cooked shrimp, peeled and chopped
17 1/2 pound imitation crab meat, chopped
18 1/2 cup chopped spinach (optional)

How to Make It

Step 01

Preheat oven to 350°F (175°C). Cook lasagna noodles in salted water according to package directions; drain and set aside.

Step 02

In a large skillet, melt butter over medium heat. Add chopped onion and minced garlic; cook for 3 to 4 minutes until softened.

Step 03

Stir in flour and cook for 1 minute, stirring constantly to form a roux.

Step 04

Gradually whisk in milk and chicken broth. Season with salt, pepper, basil, and oregano. Simmer for 5 to 7 minutes, whisking, until the sauce thickens.

Step 05

Stir in grated Parmesan cheese off heat and set sauce aside.

Step 06

In a separate bowl, mix ricotta cheese with egg until smooth and fully incorporated.

Step 07

Spread a thin layer of sauce on the bottom of a 9x13-inch baking dish. Arrange 3 noodles lengthwise, top with half the ricotta mixture, half the shrimp and crab, spinach if using, and one third of the mozzarella.

Step 08

Add another 3 noodles over the previous layer. Repeat with remaining ricotta, seafood, optional spinach, and another third of mozzarella cheese.

Step 09

Place final 3 noodles on top. Pour remaining sauce evenly over the surface and sprinkle with the rest of the mozzarella cheese.

Step 10

Cover the dish tightly with foil and bake for 30 minutes.

Step 11

Remove foil and continue baking 10 to 15 minutes more, until the top is golden and the sauce is bubbling.

Step 12

Allow the lasagna to rest for 10 minutes before slicing for best presentation.

Extra Suggestions

  1. Swap in scallops or lobster for an elevated version.
  2. For extra creaminess, substitute heavy cream for milk.
  3. Leftovers keep well and can be refrigerated for up to 3 days.

Things You'll Need

  • Large skillet
  • 9x13-inch baking dish
  • Large mixing bowl
  • Medium saucepan
  • Whisk
  • Aluminum foil

Allergen Information

Always read labels for allergens and consult your doctor if unsure.
  • Contains dairy
  • Contains eggs
  • Contains wheat (gluten)
  • Contains shellfish

Nutritional Breakdown (Per Serving)

This is for general info and isn't a replacement for professional advice.
  • Calories: 420
  • Fat Content: 18 grams
  • Carbohydrates: 45 grams
  • Protein Content: 25 grams