Shrimp Crab Lasagna Recipe tastes rich and creamy with sweet seafood tucked into layers of tender noodles and melty cheese. It uses smart pantry shortcuts, so it stays budget friendly for a special-feeling weeknight or a small gathering, and you can finish it in about 1 hour 15 minutes. I grew up on classic meat lasagna, so this seafood twist feels like my rebellious phase in casserole form.
Reasons To Try This Shrimp Crab Lasagna Recipe
This Shrimp Crab Lasagna Recipe gives you all the cozy comfort of traditional lasagna with lighter, ocean-forward flavor. The shrimp and crab bring sweetness, the cheeses add savory richness, and a hint of lemon keeps every bite bright instead of heavy.
You stretch a modest amount of seafood with noodles, sauce, and cheese, so it fits a tighter budget than ordering seafood pasta at a restaurant. The recipe also reheats beautifully, so leftovers taste just as good for lunch the next day.
“This Shrimp Crab Lasagna Recipe tasted like a seafood feast in a casserole dish, and my family asked for seconds.” – Maria ★★★★★
Ingredients You Need
Seafood
- 1 pound raw shrimp, peeled and deveined, tails removed
- Medium or large size works; I often buy frozen, thawed in the fridge overnight.
- 8 ounces lump crab meat
Pasta and Dairy
- 9 to 12 lasagna noodles
- Use regular or no-boil; I often grab no-boil to save time and dishes.
- 2 cups shredded mozzarella cheese
- 1 cup shredded Parmesan cheese
- 1 cup ricotta cheese
- Cottage cheese works if you blend it smooth.
- 1 large egg
- 1 ½ cups heavy cream
- Half-and-half works in a pinch, though the sauce turns slightly thinner.
Vegetables and Aromatics
- 2 tablespoons olive oil
- 3 tablespoons butter
- 1 small yellow onion, finely diced
- 3 cloves garlic, minced
- 1 small red bell pepper, finely diced
- 1 cup baby spinach, chopped
- 2 tablespoons fresh parsley, chopped
- 1 tablespoon fresh basil, chopped, or 1 teaspoon dried basil
Flavor Boosters
- ½ teaspoon crushed red pepper flakes, optional
- 1 teaspoon Old Bay or other seafood seasoning
- ½ teaspoon dried oregano
- ½ teaspoon smoked paprika
- Zest of 1 lemon
- 1 tablespoon lemon juice
- ½ teaspoon Dijon mustard, optional but tasty
- ½ teaspoon kosher salt, plus more to taste
- ¼ teaspoon black pepper
Pantry Shortcuts and Substitutions
- Use jarred Alfredo sauce instead of homemade cream sauce if you feel short on time; you need about 2 ½ cups.
- Swap lump crab with imitation crab to cut costs; chop it small so it blends into the layers.
- Use frozen chopped spinach; thaw and squeeze it dry in a towel.
- Replace mozzarella with an Italian blend cheese if that sits in your fridge already.
Equipment List
- 9×13 inch baking dish
- Large skillet or sauté pan
- Medium saucepan (if you make cream sauce from scratch)
- Large pot for boiling noodles
- Mixing bowls
- Whisk and wooden spoon
- Sharp knife and cutting board
- Aluminum foil
Tips
- Pat shrimp and crab dry so the filling stays thick and not watery.
- Slightly undercook lasagna noodles so they finish cooking in the oven.
- Taste the cream sauce and seafood mixture before layering so you adjust salt and lemon.
- Chop shrimp into bite-size pieces so every slice of lasagna holds together.
- Let the lasagna rest 10 to 15 minutes before cutting so the layers set.
- Cover with foil for most of the bake time, then uncover at the end so the top browns.
- Place the baking dish on a sheet pan to catch any cheesy bubbles.
How to Make Shrimp Crab Lasagna
Step 1: Prep noodles and seafood
Bring a large pot of salted water to a boil and cook lasagna noodles until very al dente, about 2 minutes less than package directions. Drain them, then lay them flat on a lightly oiled sheet pan so they do not stick. Pat shrimp and crab dry with paper towels, then chop shrimp into small bite-size pieces.
Step 2: Sauté veggies and aromatics
Heat olive oil and 1 tablespoon butter in a large skillet over medium heat. Add onion and red bell pepper, then cook until soft and lightly golden, about 6 to 8 minutes. Stir in garlic, crushed red pepper flakes, oregano, and smoked paprika, then cook 1 to 2 minutes until fragrant.
Step 3: Cook the shrimp and fold in crab
Add chopped shrimp to the skillet with the veggies and season with a pinch of salt and Old Bay. Cook, stirring often, until shrimp turn opaque and firm, about 3 to 4 minutes. Turn off the heat, then gently fold in the crab, spinach, lemon zest, and parsley so the crab stays chunky.
Step 4: Mix the ricotta layer
In a medium bowl, whisk the egg, ricotta, ½ cup Parmesan, ½ teaspoon salt, and black pepper. Stir in basil and Dijon mustard if you use it. The mixture should taste savory and slightly tangy.
Step 5: Make the cream sauce
In a saucepan, melt remaining 2 tablespoons butter over medium heat. Pour in heavy cream and bring it to a gentle simmer, then lower the heat so it does not boil hard. Stir in ½ cup Parmesan, lemon juice, and a pinch of salt and pepper, then cook 3 to 4 minutes until the sauce thickens enough to coat a spoon.
Step 6: Assemble the lasagna
Preheat oven to 375°F. Spread a thin layer of cream sauce on the bottom of the 9×13 dish so noodles do not stick. Lay 3 to 4 noodles in a single layer, then spread half of the ricotta mixture over them, followed by half of the shrimp crab mixture and a handful of mozzarella.
Pour a bit more cream sauce over the seafood layer, then repeat with another layer of noodles, remaining ricotta, remaining seafood, and more mozzarella. Finish with a final layer of noodles, the rest of the cream sauce, and the remaining mozzarella and Parmesan. You want the top fully covered in cheese so it browns nicely.
Step 7: Bake to bubbly perfection
Cover the dish tightly with foil, tenting it slightly so the cheese does not stick. Bake 25 minutes, then remove the foil and bake another 15 to 20 minutes until the top turns golden and the edges bubble. If you like extra color, switch the oven to broil for 1 to 2 minutes, but watch closely so it does not burn.
Step 8: Rest and slice
Remove the Shrimp Crab Lasagna Recipe from the oven and let it rest on the counter for 10 to 15 minutes. This rest time helps the sauce thicken and the layers hold together when you slice. Cut into squares with a sharp knife and lift pieces out with a spatula.
Different Ways to Try It
- Gluten free: Use gluten free lasagna noodles and check that your seafood seasoning and crab do not contain wheat.
- Lower carb: Swap noodles with thin slices of zucchini or eggplant that you roast first to remove moisture.
- Lighter dairy: Use part skim ricotta and mozzarella, and swap half the heavy cream with milk plus 1 teaspoon cornstarch whisked in.
- Extra veggies: Add sautéed mushrooms, peas, or finely chopped broccoli to the seafood mixture.
- Spicier version: Increase crushed red pepper and add a spoonful of chili garlic sauce to the cream sauce.
How to Serve Shrimp Crab Lasagna
Serve Shrimp Crab Lasagna Recipe with a simple green salad dressed with lemon and olive oil to cut through the richness. Garlic bread or warm baguette slices taste great for soaking up extra sauce. Add a side of roasted asparagus or green beans for color and crunch. Finish the meal with a light dessert like fresh fruit or sorbet so everyone leaves the table happy but not stuffed to the brim.
Make-Ahead and Storage Success
Assemble the Shrimp Crab Lasagna Recipe up to 24 hours in advance, cover it tightly, and keep it in the fridge until baking time. Add about 10 extra minutes to the covered bake time if you start from cold. Store leftovers in airtight containers in the fridge for up to 3 days, and reheat slices in the oven or air fryer so the top stays a little crisp. Freeze tightly wrapped portions for up to 2 months, then thaw overnight in the fridge and reheat until hot and bubbly.
Shrimp Crab Lasagna Recipe
Ingredients
Instructions
- Heat the olive oil in a large skillet over medium heat. Add the onion and sauté until softened, about 3–4 minutes.
- Stir in the garlic and cook until fragrant, about 30 seconds.
- Add the chopped shrimp, salt, black pepper, and red pepper flakes if using. Cook, stirring often, until the shrimp are just pink and opaque, 3–4 minutes.
- Remove from heat and gently fold in the crab meat and chopped parsley. Set aside.
- In a medium saucepan, melt the butter over medium heat. Whisk in the flour and cook, whisking constantly, for 1–2 minutes to form a roux.
- Slowly whisk in the milk, a little at a time, until smooth. Continue cooking, whisking frequently, until the sauce thickens enough to coat the back of a spoon, 5–7 minutes.
- Remove from heat and stir in the Parmesan, mozzarella, ricotta, Italian seasoning, salt, and black pepper until smooth and creamy.
- Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish.
- Spread a thin layer of the white sauce over the bottom of the baking dish.
- Place 3 lasagna noodles in a single layer over the sauce. Top with one-third of the seafood mixture and about one-quarter of the remaining white sauce.
- Repeat the layers two more times: noodles, seafood mixture, and white sauce.
- Finish with a final thin layer of white sauce, then sprinkle the top evenly with the remaining mozzarella and Parmesan cheeses.
- Cover the baking dish loosely with foil, tenting it slightly so it does not touch the cheese.
- Bake for 25 minutes, then remove the foil and bake an additional 15–20 minutes, or until the top is bubbly and lightly golden.
- Let the lasagna rest for 10–15 minutes before slicing. Garnish with chopped parsley if desired and serve warm.
Notes
Approximate per serving (1 of 8): 520 calories; fat 28 g; saturated fat 15 g; carbohydrates 34 g; fiber 2 g; sugars 7 g; protein 32 g; sodium 860 mg. Values will vary based on specific ingredients, brands, and portion sizes.