🦐 Creamy Seafood Lasagna with Shrimp & Crab
A luxurious, creamy lasagna layered with tender shrimp, sweet crab meat, spinach, mozzarella, Parmesan, and a rich garlic cream sauce. It’s comforting enough for a family dinner but elegant enough for a special occasion. Every bite is packed with seafood flavor and creamy, cheesy goodness.
🕒 Prep Time
25 minutes
🔥 Cook Time
40–45 minutes
⏱️ Total Time
1 hour 10 minutes
🍽️ Servings
8 servings
🛒 Ingredients
For the Lasagna
- 12 lasagna noodles
- 1 lb (450 g) shrimp, peeled, deveined, and chopped
- 8 oz (225 g) lump crab meat, drained
- 2 cups fresh spinach, chopped
- 2 cups shredded mozzarella cheese
- ½ cup grated Parmesan cheese
- 1 tablespoon olive oil
- 3 cloves garlic, minced
- ½ teaspoon Italian seasoning
- ¼ teaspoon red pepper flakes, optional
- ½ teaspoon salt, or to taste
- ¼ teaspoon black pepper
- Fresh parsley, for garnish
For the Creamy Sauce
- 4 tablespoons butter
- 4 cloves garlic, minced
- ¼ cup all-purpose flour
- 3 cups whole milk
- ½ cup heavy cream
- ½ cup grated Parmesan cheese
- ½ teaspoon Italian seasoning
- ¼ teaspoon black pepper
- ¼ teaspoon salt
- ½ cup chicken or seafood broth, optional
👩🍳 Instructions
1. Cook the Lasagna Noodles
Bring a large pot of salted water to a boil. Cook the lasagna noodles according to the package directions until just al dente.
Drain and rinse briefly with cool water to prevent sticking. Set aside.
2. Prepare the Seafood
Heat olive oil in a large skillet over medium heat.
Add the minced garlic and cook for about 30 seconds until fragrant. Add the chopped shrimp, Italian seasoning, salt, pepper, and red pepper flakes if using.
Cook for approximately 2–3 minutes per side, just until the shrimp turn pink and opaque.
Be careful not to overcook the shrimp because they will continue cooking in the oven.
Gently fold in the crab meat and cook for another 1–2 minutes. Remove from heat and set aside.
3. Cook the Spinach
Using the same skillet, add the chopped spinach.
Cook for 1–2 minutes, just until wilted. If there is excess liquid, drain it well.
Combine the spinach with the seafood mixture.
4. Make the Creamy Sauce
Melt the butter in a saucepan over medium heat.
Add the minced garlic and cook for about 30 seconds.
Whisk in the flour and cook for 1 minute.
Gradually pour in the milk while whisking constantly to prevent lumps.
Add the heavy cream, Parmesan, Italian seasoning, black pepper, and salt.
Continue cooking for approximately 4–6 minutes, stirring frequently, until the sauce becomes smooth and creamy.
If the sauce becomes too thick, add a splash of seafood or chicken broth.
5. Assemble the Lasagna
Preheat your oven to 375°F (190°C).
Spread a thin layer of creamy sauce over the bottom of a greased 9×13-inch baking dish.
Place 3–4 lasagna noodles over the sauce.
Add a layer of the shrimp, crab, and spinach mixture.
Spoon over some creamy sauce and sprinkle with mozzarella and Parmesan.
Repeat the layers until all the ingredients are used, finishing with a generous layer of creamy sauce and shredded mozzarella on top.
6. Bake
Cover the baking dish loosely with aluminum foil and bake for 25 minutes.
Remove the foil and bake for another 10–15 minutes, or until the cheese is melted, bubbling, and lightly golden.
For an extra golden top, broil for 1–2 minutes at the end, watching carefully.
7. Rest & Serve
Allow the lasagna to rest for 10–15 minutes before slicing.
Garnish with fresh parsley and a little extra Parmesan.
Serve warm and enjoy!
📝 Recipe Notes
- Shrimp: Medium or large shrimp work well. Chop larger shrimp into bite-sized pieces so they’re easier to distribute between the layers.
- Crab: Lump crab meat gives the best texture and flavor, but canned crab can also be used. Drain it thoroughly.
- Noodles: Don’t overcook the noodles. Al dente noodles are easier to layer and won’t become mushy during baking.
- Sauce: The sauce should be creamy but pourable before assembling. It will thicken further while baking.
- Cheese: Mozzarella provides the stretchy, melty topping while Parmesan adds a salty, nutty flavor.
- Seafood moisture: Make sure the crab and cooked spinach are well drained. Excess moisture can make the lasagna watery.
- Make ahead: Assemble the lasagna up to 24 hours ahead, cover tightly, and refrigerate. Add approximately 10–15 minutes to the baking time if baking directly from the refrigerator.
💡 Helpful Tips
Don’t overcook the shrimp.
The shrimp only need to be cooked until just opaque before going into the lasagna. Overcooked shrimp can become rubbery.
Let it rest before cutting.
This is one of the most important steps. Resting allows the creamy layers to set, making the lasagna much easier to slice.
Use freshly grated Parmesan.
It melts more smoothly and gives the cream sauce a richer flavor than many pre-shredded varieties.
Add extra vegetables.
Mushrooms, zucchini, bell peppers, or chopped broccoli can be added if you want more vegetables.
Want more seafood flavor?
Replace some of the milk with seafood broth or add a small splash of dry white wine to the sauce while cooking.
🍽️ Serving Suggestions
This creamy seafood lasagna is rich and satisfying on its own, but it pairs beautifully with lighter sides.
Try serving it with:
- Crisp green salad
- Roasted asparagus
- Steamed broccoli
- Garlic green beans
- Lemon-dressed arugula
- Roasted vegetables
- Crusty garlic bread
A simple salad with lemon vinaigrette is especially good because the acidity helps balance the richness of the creamy sauce.
🥗 Approximate Nutritional Information
Per serving, based on 8 servings:
- Calories: ~560
- Protein: ~34 g
- Carbohydrates: ~43 g
- Fat: ~28 g
- Saturated Fat: ~15 g
- Fiber: ~3 g
- Sugar: ~6 g
- Sodium: ~850 mg
- Calcium: ~400 mg
Nutrition is an estimate and can vary depending on the brands, portion sizes, seafood, cheese, and other ingredients used.
❤️ Benefits
🦐 Good Source of Protein
Shrimp and crab provide high-quality protein, which is important for maintaining muscles and supporting overall body functions.
🥬 Adds Vegetables
Fresh spinach contributes vitamins, minerals, antioxidants, and fiber while adding beautiful color to the lasagna.
🧀 Provides Calcium
Milk, mozzarella, and Parmesan contribute calcium, which supports healthy bones and teeth.
🍤 Seafood Variety
Including both shrimp and crab gives this lasagna a delicious combination of textures and flavors while providing nutrients commonly found in seafood.
🍽️ Satisfying Comfort Food
The combination of protein, carbohydrates, and fat makes this a filling meal that works beautifully for family dinners or special occasions.
❓ Q&A
Q: Can I use frozen shrimp?
Yes. Thaw the shrimp completely and pat them dry with paper towels before cooking.
Q: Can I use imitation crab?
Yes, although lump crab meat provides a more natural seafood flavor and texture. If using imitation crab, add it toward the end so it doesn’t become tough.
Q: Can I make this lasagna ahead of time?
Absolutely. Assemble it, cover tightly, and refrigerate for up to 24 hours before baking.
Q: Can I freeze seafood lasagna?
Yes. Once completely cooled, wrap it tightly and freeze. For best texture, use within about 2–3 months. Thaw overnight in the refrigerator before reheating.
Q: Why is my lasagna watery?
The most common causes are excess moisture from the spinach, crab, shrimp, or sauce. Drain seafood well and cook spinach until excess liquid has evaporated.
Q: Can I substitute the heavy cream?
Yes. You can use additional whole milk for a lighter sauce, although the final sauce will be slightly less rich and creamy.
Q: Can I add more cheese?
Of course! Extra mozzarella on top creates an especially bubbly, golden cheese layer.
Q: How long does leftovers last?
Store covered in the refrigerator for up to 3–4 days. Reheat individual portions until heated through.
Q: What makes this lasagna different from traditional lasagna?
Instead of the classic tomato and beef sauce, this version uses shrimp, crab, spinach, and a creamy Parmesan garlic sauce for a rich seafood-inspired twist.
⭐ Final Tip
For the best creamy seafood lasagna, don’t rush the resting step. Let it sit for 10–15 minutes after baking so the layers can settle. Then slice, garnish with parsley and Parmesan, and serve while warm for that perfect combination of creamy sauce, tender seafood, and gooey melted cheese.