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Seafood Lasagna with Bechamel Sauce Recipe

There’s something irresistibly comforting about layers of tender pasta, creamy sauce, and fresh seafood all baked to bubbly perfection. This Seafood Lasagna with Bechamel Sauce Recipe is a special dish that really shines on any occasion, whether it’s a family dinner or when you want to impress guests without stress.

A thick square piece of creamy, cheesy casserole is being lifted by a wooden spatula over an ornate white rectangular baking dish. The top layer is golden and slightly browned baked cheese, dotted with small green parsley bits. Below the cheese is a rich white sauce with visible chunks of light orange shrimp mixed in, creating a textured look with smooth and bubbly parts. The inside layers show more shrimp and creamy sauce blending together. The dish rests on a white marbled surface with soft natural lighting highlighting the warm, comforting colors of the casserole. Photo taken with an iphone --ar 2:3 --v 7
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Why You’ll Love This Recipe

  • Creamy Bechamel Sauce: Made from scratch with garlic and clam juice, it adds that dreamy, velvety touch you won’t get from jarred sauces.
  • Fresh Seafood Combination: The mix of shrimp and lump crab meat creates layers bursting with delicate ocean flavors that feel indulgent yet light.
  • Family-Approved Comfort: I discovered this recipe when needing a crowd-pleaser, and now my family goes crazy every time I serve it.
  • Easy Assembly: Layering the components is straightforward, making it approachable even if you’re new to seafood lasagna.

Ingredients You’ll Need

All the ingredients in this Seafood Lasagna with Bechamel Sauce Recipe work together harmoniously — the creamy cheese blends with the subtle brininess of the seafood and the richness of the bechamel. When shopping, fresh or high-quality frozen shrimp and crab make a big difference here.

Flat lay of a stack of uncooked wide flat lasagna noodles, a small pile of large cooked shrimp without shells or tails, a mound of lump crab meat, a small heap of shredded Italian cheese blend, a small white ceramic bowl of grated Parmesan cheese, a cluster of bright green fresh parsley sprigs, a whole brown egg with a clean uncracked shell, a small white ceramic bowl of creamy ricotta cheese, a small white ceramic bowl of pale yellow butter, a small white ceramic bowl of finely minced garlic cloves, a small white ceramic bowl of all-purpose flour, a small white ceramic bowl filled with clam juice, a small white ceramic bowl of whole milk, a small white ceramic bowl of cracked black pepper, a small white ceramic bowl of fine salt, a small white ceramic bowl of ground nutmeg, all arranged with perfect symmetry on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997
  • Butter: For the bechamel sauce, go with unsalted to control the seasoning perfectly.
  • Garlic: Fresh minced garlic adds that wonderful aromatic base.
  • All-purpose flour: This thickens the bechamel sauce beautifully without any lumps if whisked properly.
  • Clam juice: Adds a subtle ocean flavor that complements the seafood perfectly — don’t skip or substitute with too strong seafood stock.
  • Whole milk: For richness in the bechamel; I usually avoid low-fat milk here.
  • Salt, black pepper, ground nutmeg: Seasonings that quietly elevate the sauce without overwhelming it.
  • Ricotta cheese: Make sure it’s fresh and creamy for the cheese mixture.
  • Large egg: Lightly beaten, it helps bind the ricotta layer.
  • Parmesan cheese: Freshly grated for the best flavor in both the cheese mixture and topping.
  • Fresh parsley: Adds color and a mild herbaceous note in the cheese layer and garnish.
  • Lasagna noodles: I always cook a few extra since some breakage is inevitable when layering.
  • Large shrimp: Cooked, peeled, deveined, and tails removed – you want tender but not overcooked seafood here.
  • Lump crab meat: Carefully check for shells to ensure every bite is smooth and enjoyable.
  • Italian cheese blend: This adds gooey melted cheese goodness on top of the layers.
  • Extra Parmesan for topping: For that irresistible golden crust.
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Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

I like to mix things up depending on what’s fresh or what my family’s in the mood for. This Seafood Lasagna with Bechamel Sauce Recipe is easy to customize, so feel free to bring your own touch.

  • Vegetable Add-In: I’ve tossed in sautéed spinach or leeks before for an earthy contrast; it adds nice texture and color.
  • Different Seafood: Try scallops or white fish chunks — just make sure to cook them gently so they don’t dry out.
  • Lighten the Dish: Swap whole milk for half-and-half to keep it lighter without sacrificing the creamy bechamel feel.
  • Spicy Kick: Add a pinch of red pepper flakes into the bechamel for a subtle warmth that really wakes up the flavors.

How to Make Seafood Lasagna with Bechamel Sauce Recipe

A white plate holds a layered shrimp lasagna with cream sauce and melted cheese on top, garnished with chopped green herbs. The lasagna has multiple visible layers: a bottom layer of pasta sheets, a middle filling with creamy shrimp and cheese, and a top shiny golden-brown cheese layer with shrimp pieces. Around the lasagna slice, there are fresh green leaves and a lemon wedge on the side. A fork lifts a creamy bite with shrimp from the lasagna. The background shows a white marbled surface and a white dish with more lasagna. Photo taken with an iphone --ar 2:3 --v 7

Step 1: Prepare the Pasta and Oven

Start by cooking your lasagna noodles according to the package directions—this sets you up for easy layering later. I always keep a few extra noodles on hand in case some break while handling. While your noodles cook, preheat the oven to 350°F — you want it ready to go once the lasagna’s assembled.

Step 2: Make the Bechamel Sauce

This is where the magic happens! Melt the butter over medium heat, then toss in the garlic for a quick fragrance boost—about 30 seconds is perfect, don’t let it brown. Whisk in the flour and cook it for about a minute to get rid of any raw taste. Now, slowly mix in the clam juice, whisking so it stays silky smooth. Pour in the milk gradually while whisking continuously—this keeps lumps out. Add your salt, pepper, and a hint of nutmeg; that little spice really rounds out the flavor. Let it simmer gently for 2-3 minutes until thickened. You’ll know you nailed it when the sauce coats the back of your spoon, velvety and rich.

Step 3: Mix the Ricotta Cheese Mixture

In a bowl, blend together ricotta cheese, the beaten egg, grated Parmesan, chopped parsley, salt, and pepper. You want the mixture just combined — don’t overmix or it can become too dense. This creaminess adds a wonderful texture contrast within the layers.

Step 4: Combine the Seafood

In another bowl, gently toss the cooked shrimp and lump crab meat to combine evenly. I like doing this separately so I can control the seafood distribution in each layer—it helps keep every bite balanced.

Step 5: Assemble Your Lasagna

Now, spread a layer of the bechamel sauce on the bottom of a 9×13 baking dish. Lay down three noodles, then cover with a third of the bechamel, followed by a third of the ricotta mixture. Scatter a third of the seafood on top, then sprinkle some of your Italian cheese blend. Repeat this layering two more times—three layers total! Finish with a final layer of noodles, pour the remaining bechamel sauce over, and spread it evenly. Top with the leftover Italian cheese blend and Parmesan for that irresistible golden crust.

Step 6: Bake and Rest

Cover the lasagna loosely with foil and place it on a baking sheet (this saves you from any messy spills in the oven). Bake for about 30 minutes covered, then remove the foil and bake for an additional 15 minutes until the top is bubbly and beautifully golden. After pulling it out, let it rest for at least 15 minutes before slicing—this step is crucial for clean, perfect slices because the layers will firm up nicely.

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Pro Tips for Making Seafood Lasagna with Bechamel Sauce Recipe

  • Smooth Sauce Every Time: Whisk steadily when adding milk to prevent lumps in your bechamel — patience here pays off big time!
  • Seafood Prep: Cook shrimp just until pink and firm to avoid rubbery bites once baked in the lasagna.
  • Layering Balance: Distribute seafood evenly among the layers so every slice has a delicious mix, not too much in one spot.
  • Resting is Key: Letting the baked lasagna sit before slicing helps the bechamel set and prevents the layers from sliding apart.

How to Serve Seafood Lasagna with Bechamel Sauce Recipe

Seafood Lasagna - Serving Suggestion

Garnishes

I love finishing this seafood lasagna with a sprinkle of fresh chopped parsley—it adds a lovely pop of color and a fresh, herbaceous note to each rich, cheesy bite. Sometimes, a little lemon zest grated on top brightens the flavors beautifully.

Side Dishes

This dish pairs wonderfully with a crisp green salad tossed in a light vinaigrette to cut through the richness. Roasted asparagus or garlic sautéed green beans also make perfect complementing sides that don’t overshadow the lasagna’s flavors.

Creative Ways to Present

For special occasions, I’ve served this seafood lasagna in individual ramekins for an elegant touch — it makes portions neat and feels extra special. Garnishing each with a single whole cooked shrimp or a lemon wedge gives it a restaurant-quality finish that wows guests every time.

Make Ahead and Storage

Storing Leftovers

I tightly cover the leftover lasagna with plastic wrap or transfer portions to airtight containers and refrigerate. It keeps great for up to 3 days. When I reheat, the flavors have usually melded even better overnight!

Freezing

I’ve frozen this lasagna successfully by wrapping it well in foil and plastic wrap to protect from freezer burn. When you’re ready, thaw overnight in the fridge then bake covered and finished uncovered—this method keeps the texture and taste lovely.

Reheating

For best results, reheat leftovers in the oven at 350°F covered with foil to warm through without drying out, then uncover in the last 10 minutes to regain that golden cheese topping. I avoid microwaving because it can make the cheese rubbery and the sauce separate.

FAQs

  1. Can I use no-boil lasagna noodles for this recipe?

    Absolutely! No-boil noodles save time and simplify prep. Just make sure your bechamel sauce is slightly thicker to ensure the noodles absorb enough moisture while baking, keeping the layers tender.

  2. Is clam juice necessary in the bechamel sauce?

    Clam juice adds a subtle briny depth that complements the seafood beautifully, but if you can’t find it, a light seafood stock or diluted fish broth can work as a substitute without overpowering the flavors.

  3. How do I prevent the seafood from overcooking?

    Using precooked shrimp and gentle baking at 350°F helps. Avoid adding raw seafood directly, and don’t bake for much longer than recommended; the resting time also continues gentle cooking outside the oven.

  4. Can I make this recipe dairy-free?

    Makes a dairy-free version tricky since bechamel and cheeses are key here, but you could experiment with plant-based butter, milk alternatives, and dairy-free ricotta/cheese substitutes. Just expect the texture and flavor to be quite different.

  5. Does the lasagna freeze well?

    Yes! This seafood lasagna freezes nicely when tightly wrapped and thawed correctly before baking or reheating. It’s a great make-ahead meal for busy weeks or special occasions.

Final Thoughts

This Seafood Lasagna with Bechamel Sauce Recipe holds a special place in my kitchen and heart. It’s that dish I turn to whenever I want something comforting, impressive, and bursting with flavor without too much fuss. I know you’ll find the creamy layers and fresh seafood as crowd-pleasing and satisfying as my family does. Trust me, once you’ve made it, you’ll want to keep it in your rotation too!

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Seafood Lasagna with Bechamel Sauce Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 3 reviews
  • Author: Lina
  • Prep Time: 45 minutes
  • Cook Time: 50 minutes
  • Total Time: 1 hour 35 minutes
  • Yield: 8 servings 1x
  • Category: Main Course
  • Method: Baking
  • Cuisine: Italian
  • Diet: Low Lactose

Description

This Seafood Lasagna recipe combines succulent shrimp and lump crab meat with a creamy bechamel sauce and a rich ricotta cheese mixture. Layers of tender lasagna noodles and Italian cheese blend create a comforting and elegant dish perfect for special occasions or a delightful dinner.


Ingredients

Scale

Bechamel Sauce:

  • 6 tablespoons butter
  • 3 cloves minced garlic
  • 6 tablespoons all-purpose flour
  • ½ cup clam juice
  • 3 cups whole milk
  • 1 teaspoon black pepper
  • 1 teaspoon salt
  • ¼ teaspoon ground nutmeg

Cheese Mixture:

  • 15 ounces ricotta cheese
  • 1 large egg, lightly beaten
  • ¾ cup Parmesan cheese, grated
  • ¼ cup fresh parsley, chopped
  • ½ teaspoon salt
  • ½ teaspoon ground black pepper

For Lasagna Assembly:

  • 12 lasagna noodles (plus extra for breakage)
  • 2 pounds large shrimp, cooked, peeled, deveined, and tails removed
  • 8 ounces lump crab meat (checked for shells)
  • 3 cups Italian cheese blend, shredded
  • ½ cup Parmesan cheese, grated
  • Fresh parsley, chopped, for garnish

Instructions

  1. Prepare Noodles and Oven: Cook the lasagna noodles according to package instructions until al dente. Preheat your oven to 350°F.
  2. Make Bechamel Sauce – Melt Butter and Garlic: In a large skillet over medium heat, melt the butter. Add minced garlic and cook for about 30 seconds until fragrant.
  3. Add Flour and Clam Juice: Whisk in the all-purpose flour and cook, stirring constantly, for 1 minute. Gradually pour in the clam juice while whisking to create a smooth mixture.
  4. Add Milk and Seasonings: Slowly whisk in the whole milk until the sauce is smooth. Stir in salt, black pepper, and ground nutmeg.
  5. Simmer Sauce: Bring the sauce to a simmer and cook, stirring frequently, for 2-3 minutes until thickened.
  6. Prepare Cheese Mixture: In a medium bowl, mix together ricotta cheese, beaten egg, grated Parmesan cheese, chopped parsley, salt, and black pepper until just combined.
  7. Mix Seafood: In a separate bowl, gently toss the cooked shrimp and lump crab meat together until evenly combined.
  8. Assemble Lasagna: Spread a thin layer of the bechamel sauce over the bottom of a 9×13 baking dish. Arrange 3 lasagna noodles over the sauce. Spread one-third of the bechamel sauce over the noodles, then one-third of the ricotta mixture. Scatter one-third of the seafood mixture over the ricotta, followed by a portion of the Italian cheese blend. Repeat layering two more times with remaining ingredients.
  9. Top Lasagna: Place the final layer of noodles on top. Pour the remaining bechamel sauce over the noodles and spread evenly with a spatula. Sprinkle the remaining Italian cheese blend and Parmesan cheese over the top.
  10. Bake Covered: Cover the lasagna loosely with foil. Place it on a baking sheet to catch any spillage and bake for 30 minutes.
  11. Bake Uncovered: Remove the foil and continue baking for another 15 minutes or until the top is golden brown and bubbly.
  12. Rest and Serve: Remove the lasagna from the oven and let it rest for at least 15 minutes to set the layers. Garnish with fresh chopped parsley before slicing and serving.

Notes

  • Cover the baking dish tightly with plastic wrap or transfer individual portions to an airtight container. Refrigerate for up to 3 days.
  • Use cooked shrimp to reduce overall cooking time and ensure seafood is safely prepared.
  • Check crab meat carefully for shells to avoid unpleasant bites.
  • For easier handling, allow lasagna to cool slightly before slicing to maintain clean layers.
  • If you prefer, substitute clam juice with seafood broth or fish stock.
  • Lasagna noodles can be boiled a minute less than package instructions to avoid overcooking during baking.

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