Seafood lasagna slice with creamy béchamel, shrimp, and crab, garnished with parsley and lemon zest.
by Sophia
|

Bring the elegance of seafood to your dinner table with this creamy, cheesy, and flavor-packed seafood lasagna. Whether you’re hosting a special dinner or treating yourself to a cozy night in, this dish promises to impress.

I still remember the first time I tasted seafood lasagna. It was on a chilly spring evening at a seaside bistro during a family vacation. The layers of tender pasta, creamy white sauce, and buttery shrimp felt like a warm hug after a long day of exploring. Since then, it’s become my signature dish for when I want something indulgent yet surprisingly simple.

So grab your apron and let’s create a showstopping meal that’ll make your kitchen smell like the ocean—in the best way possible.

Why You’ll Love This Seafood Lasagna

This isn’t your average lasagna. It’s rich, comforting, and loaded with flavors that’ll transport you straight to a coastal café. Here’s why this recipe deserves a spot in your weekly rotation or your next dinner party menu:

Luxurious and Creamy Layers

Imagine biting into tender pasta sheets embraced by a velvety white sauce, perfectly seasoned and dotted with juicy shrimp and sweet crab meat. The ricotta adds a light, fluffy texture while the mozzarella and Parmesan melt into a golden, bubbling top layer. Every forkful feels like a little indulgence—rich enough for special occasions yet comforting enough for a cozy weeknight.

It’s like wrapping yourself in a culinary blanket of warmth, creaminess, and the unmistakable flavors of the sea.

Perfect for Special Occasions

This seafood lasagna isn’t just food—it’s a centerpiece. It’s the dish that makes guests pause mid-bite to say, “Wow, did you make this?” Whether it’s Christmas Eve dinner, an anniversary, or a casual Sunday lunch with friends, this recipe turns any meal into a celebration.

It also plates beautifully. Those golden, cheesy layers with flecks of fresh parsley and lemon zest are almost too pretty to eat (but trust me—you’ll want to).

Surprisingly Simple to Make

You might think something this decadent would take hours of work, but here’s the secret: it’s easier than you imagine.

  • The white sauce comes together in minutes.

  • The seafood cooks fast—just a quick sauté for the shrimp before layering.

  • Assembly is as simple as stacking noodles, sauce, cheese, and seafood until your baking dish is full of promise.

It’s a foolproof recipe, perfect even for kitchen newbies or anyone short on time.

Versatile and Customizable

One of the joys of this recipe is how easily it adapts:

  • No crab? Swap in scallops or chunks of white fish.

  • Prefer a dairy-free option? Use plant-based cream and cheese.

  • Want to turn up the indulgence? Add a sprinkle of lobster meat.

Ingredients

Seafood lasagna slice with creamy béchamel, shrimp, and crab, garnished with parsley and lemon zest.

Before we dive in, let’s set up your kitchen like a pro. Think of this as your prep talk—literally. Here’s everything you’ll need to create this luscious, seafood-packed masterpiece:

Full List of Ingredients

  • Lasagna noodles – The sturdy foundation of your dish. These wide pasta sheets hold all those creamy, cheesy layers together like a culinary hug.

  • Olive oil – Just a drizzle is enough to coax out sweetness from the shrimp and keep the noodles from sticking.

  • Shrimp – The star of the show. Juicy, tender, and quick to cook, they bring a delightful bite to every layer.

  • Lump crab meat – Sweet, delicate, and oh-so-decadent. It adds a subtle oceanic flavor that pairs beautifully with the creamy sauce.

  • Unsalted butter – The hero behind our silky white sauce. It melts into a golden pool of goodness, ready to embrace the flour.

  • All-purpose flour – Your secret weapon for a perfectly thick béchamel that clings to each noodle.

  • Whole milk & heavy cream – Together, they create a velvety texture that makes this dish feel like dining at a seaside restaurant.

  • Salt, black pepper, nutmeg – Simple yet essential seasonings to balance and elevate the richness.

  • Shredded mozzarella & Parmesan cheese – Melty, gooey, and irresistibly golden when baked.

  • Ricotta cheese – Fluffy and creamy, it lightens the layers and keeps them from feeling too heavy.

  • Garlic, parsley, lemon zest – Fresh aromatics that brighten and round out every bite. (The lemon zest garnish? Optional—but trust me, it’s a game-changer.)

How to Make Seafood Lasagna

Now comes the fun part—bringing it all together! Don’t let the layered elegance fool you; this process is as satisfying as the first bite. Here’s your roadmap:

Step-by-Step Instructions

1️⃣ Preheat and prep

  • Preheat your oven to 375°F (190°C).

  • Cook your lasagna noodles according to package instructions. Stop them just shy of fully tender—they’ll finish cooking in the oven. Drain and set aside, laying them flat on a lightly oiled surface to avoid sticking.

2️⃣ Sauté the shrimp

  • Heat olive oil in a large skillet over medium heat.

  • Add shrimp and a pinch of salt. Cook for 2–3 minutes, until they turn pink and slightly firm.

  • Remove from heat and gently fold them in with the crab meat. Set aside this dreamy seafood mix.

3️⃣ Create your luscious white sauce

  • In a saucepan, melt butter over medium heat. Stir in flour and whisk constantly for about 1 minute to form a smooth roux.

  • Slowly pour in the milk and heavy cream, whisking continuously to avoid lumps.

  • Keep stirring until the sauce thickens—about 8–10 minutes. Season with salt, pepper, and a whisper of nutmeg. Taste and smile. This sauce is pure comfort in liquid form.

4️⃣ Layer it up

  • In a 9×13-inch baking dish, spread a thin layer of white sauce on the bottom.

  • Place 3 lasagna noodles on top.

  • Spread half the ricotta cheese over noodles. Then add half the seafood mixture, a sprinkle of mozzarella, and a ladle of white sauce.

  • Repeat these layers: noodles, ricotta, seafood, mozzarella, sauce.

5️⃣ Finish strong

  • Top with the final layer of noodles, the remaining white sauce, and a generous blanket of mozzarella and Parmesan.

6️⃣ Bake to golden perfection

  • Cover the dish with foil and bake for 25 minutes.

  • Remove the foil and bake for another 15 minutes until the top is golden, bubbling, and slightly crisp at the edges.

7️⃣ Rest and garnish

  • Let your lasagna rest for at least 10 minutes before slicing. (This is the hardest part, I know.)

  • Sprinkle with fresh parsley and a hint of lemon zest for that final flourish.

What to Serve with Seafood Lasagna

Seafood lasagna slice with creamy béchamel, shrimp, and crab, garnished with parsley and lemon zest.

You’ve just pulled a bubbling, golden seafood lasagna from the oven. Now, let’s talk about what to serve alongside it to turn this meal into a full-on dining experience.

Suggested Pairings

Sides

  • 🥖 Garlic Bread – Because nothing soaks up that creamy white sauce better than a warm, crusty slice.

  • 🥗 Caesar Salad – A crisp, tangy counterpoint to balance the richness of the lasagna.

  • 🌿 Roasted Asparagus – Simple, elegant, and perfectly seasonal.

Drinks

  • 🍷 Crisp White Wine – Sauvignon Blanc or Chardonnay will cut through the creaminess beautifully.

  • 🍋 Sparkling Water with Lemon – Refreshing and light for a non-alcoholic option.

Desserts

  • 🍋 Lemon Sorbet – A zesty, palate-cleansing finish.

  • 🍮 Panna Cotta – Soft and silky, a sweet way to end this decadent meal.

Variations and Substitutions

Cooking is as much about flexibility as it is about precision. Here’s how you can make this seafood lasagna your own:

Swap the Seafood

No crab in your fridge? No problem. Try:

  • Succulent scallops for a touch of elegance.

  • Chunks of lobster for extra indulgence.

  • A firm white fish like cod or halibut for a milder flavor.

Make it Gluten-Free

  • Use gluten-free lasagna noodles.

  • Swap all-purpose flour for a gluten-free blend when making the roux.

Dairy-Free Version

  • Opt for plant-based cream and butter.

  • Use dairy-free mozzarella and ricotta alternatives.
    This tweak keeps all the lusciousness but makes it accessible for everyone at the table.

Storage Instructions

Seafood lasagna slice with creamy béchamel, shrimp, and crab, garnished with parsley and lemon zest.

If you’re lucky enough to have leftovers, here’s how to keep them delicious:

Room Temperature

  • Leave lasagna out for no more than 2 hours before refrigerating.

Refrigeration

  • Store tightly covered in the fridge. It stays fresh for 3–4 days.

Freezing

  • Let baked lasagna cool completely. Wrap in foil and freeze for up to 2 months.

  • To reheat, thaw overnight in the fridge and bake at 350°F (175°C) until heated through.

Pro Tips for the Best Seafood Lasagna

  • Undercook your noodles slightly – They’ll finish cooking as the lasagna bakes.

  • Use fresh, high-quality seafood – It’s the key to that delicate, ocean-fresh flavor.

  • Let it rest before slicing – This helps the layers set, so you get clean, beautiful servings instead of a creamy puddle.

Related Recipes

If you loved this seafood lasagna, try these delicious recipes too:

FAQs

Can I make seafood lasagna ahead of time?

Absolutely! Assemble the lasagna and refrigerate it up to 24 hours before baking. It’s a lifesaver for entertaining.

What seafood works best?

Shrimp, crab, lobster, scallops, and firm white fish all shine in this recipe.

Can I use frozen seafood?

Yes—but make sure it’s fully thawed and patted dry to avoid excess moisture in your lasagna.

Is there a vegetarian version?

Sure! Sauté mushrooms and spinach in place of the seafood for a hearty, earthy alternative.

How do I avoid watery lasagna?

Drain your seafood well, avoid over-saucing, and let the lasagna rest after baking.

Conclusion

This seafood lasagna is the ultimate showstopper—rich, creamy, and brimming with flavor. It’s perfect for family gatherings, special occasions, or even as a decadent weeknight treat.

So go ahead, tie on that apron and dive in. Once you taste that first bite of tender noodles layered with creamy béchamel and buttery seafood, you’ll be hooked.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Seafood lasagna slice with creamy béchamel, shrimp, and crab, garnished with parsley and lemon zest.

Seafood Lasagna Recipe


  • Author: Sophia
  • Total Time: 1 hour 5 minutes
  • Yield: 8 servings 1x

Description

This decadent seafood lasagna features tender shrimp and sweet crab meat layered with creamy béchamel and gooey cheeses. A showstopping dish perfect for holidays or weeknight indulgence.


Ingredients

Scale
  • 9 lasagna noodles

  • 2 tbsp olive oil

  • 1 lb shrimp (peeled & deveined)

  • 8 oz lump crab meat

  • 4 tbsp unsalted butter

  • ¼ cup all-purpose flour

  • 4 cups whole milk

  • 1 cup heavy cream

  • 1 tsp salt

  • ½ tsp black pepper

  • ¼ tsp nutmeg

  • 2 cups shredded mozzarella cheese

  • ½ cup grated Parmesan cheese

  • 1 cup ricotta cheese

  • 2 cloves garlic (minced)

  • 2 tbsp fresh parsley (chopped)

  • Lemon zest for garnish (optional)


Instructions

  • Preheat oven to 375°F (190°C). Cook lasagna noodles and set aside.

  • Sauté shrimp in olive oil until pink, then combine with crab meat.

  • Make white sauce: melt butter, whisk in flour, add milk/cream until thickened. Season with salt, pepper, nutmeg.

  • Layer noodles, ricotta, seafood, sauce, and cheeses in a baking dish.

  • Repeat layers. Top with mozzarella and Parmesan.

  • Bake covered for 25 minutes, uncover and bake 15 more until golden.

  • Rest 10 minutes before serving. Garnish with parsley and lemon zest.

Notes

  • You can substitute scallops or lobster for shrimp.

  • Gluten-free noodles and dairy-free cheese can be used for dietary needs.

  • Prep Time: 25 minutes
  • Cook Time: 40 minutes
  • Category: Main Dish
  • Method: Baking
  • Cuisine: Italian-American

Nutrition

  • Calories: 520 kcal
  • Sugar: 5g
  • Sodium: 860mg
  • Fat: 28g
  • Saturated Fat: 15g
  • Carbohydrates: 36g
  • Fiber: 1g
  • Protein: 28g
  • Cholesterol: 180mg

Keywords: Creamy seafood lasagna, White sauce seafood lasagna, Shrimp and crab lasagna, Easy seafood pasta bake

Leave a Comment

Recipe rating