Seafood Lasagna Fusion Delight

Category: Dinner Ideas That Actually Work

This seafood lasagna brings together succulent shrimp, tender crawfish tails, and delicate lump crabmeat layered with fresh spinach and rich cheeses. Boiled al dente with a splash of liquid crab boil, the noodles provide subtle heat and flavor. A creamy Alfredo-inspired sauce enhanced with garlic, Creole seasoning, and Parmesan ties the dish together. The filling replaces ricotta with a lush garlic-herb cream cheese blend, creating a smooth, velvety texture. After assembling three hearty layers, it's baked until bubbling and golden, then finished with fresh basil. The result is a luscious, crowd-pleasing dish perfect for festive occasions.

Lili Clark smiling at the camera.
Created By Lili Clark
Updated on Wed, 03 Dec 2025 14:43:35 GMT
A seafood lasagna recipe with a white plate. Save
A seafood lasagna recipe with a white plate. | lilicooks.com

This seafood lasagna blends Italian tradition with vibrant Creole flavors for a rich and indulgent meal perfect for special occasions. Loaded with shrimp, crawfish, and crabmeat and layered with creamy cheese and spinach, it is a decadent treat that brings together the best of both culinary worlds.

I first made this during a family gathering, and it quickly became the star of every party. The blend of spices and seafood had everyone asking for seconds and the leftovers barely lasted two days.

Ingredients

  • Lasagna sheets: Boiled in water with liquid crab boil for a subtle seafood kick. Use good quality pasta for best texture
  • Medium shrimp: Fresh or frozen, peeled and deveined for convenience and purity of flavor
  • Crawfish tails: Adds that authentic Creole seafood touch. Ensure they are thawed if frozen
  • Lump crabmeat: Delicate and sweet, handle gently to keep the chunks intact
  • Creole or Cajun seasoning: Infuses the seafood with a bold and spicy flavor typical of Louisiana cooking
  • Olive oil: For sautéing spinach, choose extra virgin for the best aroma
  • Fresh spinach: Adds a touch of green to balance the richness
  • Salt: Enhances flavors
  • Shredded Mozzarella: Fresh mozzarella frozen briefly before shredding shreds cleanly and melts beautifully
  • Shredded Fontina cheese: Creamy and mild. Substitute with Muenster or Monterrey Jack if unavailable
  • Butter: Forms the base of the sauce and enriches the flavor
  • Crushed garlic: Fresh garlic elevates the sauce
  • Flour: Helps thicken the sauce
  • Half and half: Creates a creamy texture with less heaviness than cream
  • Chicken stock: Adds savory depth to the sauce
  • Liquid crab boil: A secret ingredient that layers additional seafood flavor and subtle heat
  • Cracked black pepper: For seasoning the sauce
  • Shredded Parmesan cheese: Adds nuttiness and sharpness in both sauce and filling
  • Fresh basil: For a fragrant herbal finish
  • Garlic and herb cream cheese: Used in the filling as a rich alternative to ricotta
  • Sour cream: Lightens and softens the cream cheese filling

Step-by-Step Instructions

Sauté the Spinach:
Begin by heating olive oil in a pan over medium high heat. Add fresh spinach along with a pinch of salt. Stir occasionally until the spinach is fully wilted. Remove from heat and set aside for layering later.
Prepare the Seafood:
In a bowl, combine shrimp, crawfish tails, and lump crabmeat. Sprinkle evenly with Creole or Cajun seasoning and toss gently so the crab meat stays mostly in chunks. Set aside.
Cook the Lasagna Sheets:
Boil a large pot of water and add liquid crab boil to the water for added seafood flavor. Submerge lasagna sheets and cook until al dente according to package instructions. Drain carefully and set aside.
Make the Alfredo Sauce:
Preheat oven to 375 degrees Fahrenheit. In the pan used for spinach, melt butter over medium heat. Add crushed garlic and sauté for about 30 seconds without letting it brown. Stir in flour and cook for one minute to form a roux. Slowly whisk in chicken stock and half and half, stirring constantly until the sauce thickens. Season with Creole seasoning and cracked black pepper to taste, then stir in liquid crab boil. Finally, add the Parmesan cheese and remove from heat once melted.
Mix the Filling:
In a bowl, combine garlic and herb cream cheese, sour cream, shredded Parmesan, and chopped fresh basil. Blend until smooth and set aside.
Assemble the Lasagna:
Spray a lasagna pan with nonstick cooking spray. Ladle a thin layer of Alfredo sauce onto the bottom. Layer lasagna sheets to cover the sauce. Spread one third of the cream cheese filling over the noodles. Add one third of the seafood mixture combined with the wilted spinach. Sprinkle on one third of the shredded Mozzarella and Fontina cheeses. Pour one third of the Alfredo sauce over the top. Repeat for two more layers forming three layers total.
Bake and Broil:
Place the assembled lasagna uncovered on the center rack of the preheated oven. Bake for 35 to 45 minutes until bubbly and set. For a golden brown top, broil on high for 3 to 5 minutes watching carefully to avoid burning.
Finish and Cool:
Sprinkle fresh basil over the top. Remove from oven and let cool for at least 15 minutes to settle before cutting and serving.
A seafood lasagna recipe is displayed in a white bowl. Save
A seafood lasagna recipe is displayed in a white bowl. | lilicooks.com

I love the way the seafood seasoning comes through without overwhelming the delicate crabmeat. This dish always brings back joyful memories of family holiday dinners where everyone was eager to gather around the table.

Storage Tips

Cover leftovers tightly with plastic wrap or foil and store in the refrigerator for up to three days. To freeze, portion into airtight containers and freeze for up to three months. Thaw in the refrigerator overnight before reheating gently in the oven to preserve texture.

Ingredient Substitutions

If lump crabmeat is hard to find, substitute with flaked crab or additional shrimp. Fontina cheese can be swapped with Muenster or Monterrey Jack for a similar creamy melt. For a dairy-free option, try coconut milk-based half and half substitutes and omit the cream cheese filling.

Serving Suggestions

Serve with a fresh green salad dressed lightly with lemon vinaigrette to cut through the richness. Garlic bread or crusty Italian bread makes a perfect side to soak up extra sauce. A crisp white wine will also complement the seafood flavors beautifully.

Cultural Context

This recipe marries classic Italian lasagna traditions with bold Louisiana Creole spices, reflecting a fusion of two rich culinary heritages. It showcases how local ingredients like crawfish and crab can transform a classic dish into something fresh and regionally meaningful.

Recipe FAQs

→ What seafood is used in this seafood lasagna?

This dish features shrimp, crawfish tails, and lump crabmeat, all seasoned with Creole spices to enhance their natural flavors.

→ How do you prepare the lasagna noodles for this dish?

Boil the lasagna sheets until just al dente with a splash of liquid crab boil added to the water for a subtle kick of heat and depth in taste.

→ What cheese substitutes are recommended for ricotta?

This version uses a creamy garlic and herb cream cheese mixture instead of ricotta, delivering a smooth, rich texture without the graininess.

→ How is the sauce made for this seafood lasagna?

The sauce is a creamy blend of butter, garlic, flour, half and half, chicken stock, and Parmesan, seasoned with Creole spices and liquid crab boil for a flavorful finish.

→ Any tips for shredding fresh mozzarella cheese?

Chill fresh mozzarella in the freezer for 30 to 60 minutes before shredding; this firms up the cheese making it easier to grate without clumping.

→ How long should I bake and broil the assembled dish?

Bake uncovered at 375°F for 35-45 minutes until bubbly, then broil on high for 3-5 minutes to achieve a golden, browned cheese topping.

Seafood Lasagna Fusion

Layers of shrimp, crawfish, crab, and rich cheeses combine in this indulgent, flavorful Italian-Creole dish.

Preparation Time
30 min
Cooking Time
45 min
Overall Time
75 min
Created By: Lili Clark

Category: Dinner

Skill Level: Moderate

Cuisine Type: Italian-Creole Fusion

Output: 8 Serves (One 12 x 16 inch lasagna pan)

Dietary Options: ~

Ingredients

→ Pasta and Seasoning

01 1 lb lasagna sheets
02 1 tbsp liquid crab boil

→ Seafood

03 1 lb medium shrimp, peeled and deveined
04 1 lb crawfish tails
05 16 oz lump crabmeat
06 1 tbsp Creole or Cajun seasoning
07 1 tbsp olive oil

→ Vegetables

08 2 cups fresh spinach
09 ½ tsp salt

→ Cheeses

10 2 cups shredded fresh Mozzarella
11 1 cup shredded Fontina or Muenster cheese
12 1 cup shredded Parmesan cheese

→ Sauce

13 5 tbsp butter
14 1 tbsp crushed garlic
15 ⅓ cup flour
16 2½ cups half and half
17 ½ cup chicken stock
18 1 tsp liquid crab boil
19 Creole seasoning and cracked black pepper, to taste
20 1 tbsp fresh basil

→ Filling

21 8 oz garlic and herb cream cheese
22 8 oz sour cream
23 1 cup shredded Parmesan cheese
24 1 tbsp fresh basil, chopped

Steps

Step 01

Bring a large pot of water to boil with 1 tbsp liquid crab boil. Add lasagna sheets and cook until al dente according to package directions. Drain and set aside.

Step 02

In a bowl, combine shrimp, crawfish tails, and lump crabmeat. Evenly sprinkle with 1 tbsp Creole or Cajun seasoning and set aside.

Step 03

Heat olive oil in a pan over medium-high heat. Add fresh spinach and ½ tsp salt. Sauté until wilted. Remove from heat and set aside.

Step 04

Preheat oven to 375°F. In the same pan, melt butter over medium heat. Add crushed garlic and sauté for 30 seconds. Stir in flour and cook for 1 minute. Gradually whisk in chicken stock and half and half until smooth. Add 1 tsp liquid crab boil, Creole seasoning, and cracked black pepper to taste. Stir continuously until sauce thickens. Remove from heat and fold in Parmesan cheese until melted.

Step 05

In a bowl, combine cream cheese, sour cream, shredded Parmesan, and chopped fresh basil. Mix until smooth and set aside.

Step 06

Spray a standard lasagna pan with nonstick spray. Ladle a thin layer of sauce on the bottom. Arrange a layer of noodles over sauce. Spread one-third of the filling mixture on noodles, then add one-third of the seafood and spinach. Sprinkle one-third of the Mozzarella and Fontina cheeses, then drizzle one-third of the sauce. Repeat layering two more times, finishing with sauce and cheese on top.

Step 07

Bake uncovered on the center oven rack at 375°F for 35-45 minutes. Broil on high for 3-5 minutes until cheese is golden brown.

Step 08

Sprinkle fresh basil over the top. Allow to cool for at least 15 minutes before slicing and serving.

Tips

  1. Freeze fresh Mozzarella for 30-60 minutes before shredding to ease preparation.
  2. Do not overcook lasagna noodles; they should remain al dente as they will continue cooking in the oven.
  3. Use a standard lasagna pan approximately 12×16×3.5 inches for correct layering. Adjust quantities and pan size accordingly for smaller portions.

Required Tools

  • Large pot for boiling pasta
  • Large skillet or sauté pan
  • Standard lasagna pan (approx. 12×16×3.5 inches)
  • Whisk
  • Mixing bowls

Allergy Information

Always check each ingredient for allergens, and consult a medical professional if unsure.
  • Contains shellfish and dairy
  • May contain gluten in lasagna sheets and flour

Nutritional Information (per serving)

These details are shared for general guidance and don’t replace professional advice.
  • Calories: 680
  • Fats: 38 g
  • Carbohydrates: 45 g
  • Proteins: 40 g