Garlic Butter Shrimp Scampi Lasagna

This garlic butter shrimp scampi lasagna combines two kinds of comfort food in one bubbling casserole. Tender shrimp are sautéed with garlic, butter, and lemon, then layered with lasagna noodles, creamy white sauce, mozzarella, and Parmesan. The result is a rich seafood pasta bake with bright scampi flavor in every forkful. It takes a little over an hour, but much of the work can be done ahead, making it a beautiful choice for a family dinner or relaxed gathering.

Why You’ll Love This Garlic Butter Shrimp Scampi Lasagna

• Two favorite dishes in one: Classic lasagna layers meet buttery garlic shrimp and lemony white sauce.
• Comforting but fresh: Lemon, parsley, and a little red pepper keep the creamy casserole from feeling flat.
• Make-ahead friendly: Assemble the dish in the morning, refrigerate it, and bake it when dinner is close.
• Great for sharing: One 9-by-13-inch pan makes generous portions for a crowd.
• Easy to customize: Add spinach, mushrooms, or zucchini without changing the basic method.

Ingredients

For the shrimp

• 1 pound medium shrimp, peeled, deveined, and tails removed
• 2 tablespoons unsalted butter
• 1 tablespoon olive oil
• 4 garlic cloves, minced
• 1/2 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon red pepper flakes, optional
• 1 tablespoon fresh lemon juice
• 2 tablespoons chopped parsley

For the lasagna

• 12 lasagna noodles, cooked according to package directions
• 4 tablespoons unsalted butter
• 1/4 cup all-purpose flour
• 3 cups whole milk, warmed
• 1/2 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon ground nutmeg
• 15 ounces ricotta cheese
• 2 cups shredded mozzarella, divided
• 3/4 cup grated Parmesan, divided
• 1 cup baby spinach, optional

Helpful Preparation Notes

Use medium shrimp so the pieces distribute through the layers instead of becoming large pockets. Thaw frozen shrimp fully and pat them dry. You can use regular lasagna noodles or no-boil noodles; if using no-boil sheets, make sure every noodle is covered with sauce so they soften properly. Warm milk makes the white sauce come together more smoothly.

How to Make Garlic Butter Shrimp Scampi Lasagna

1. Heat the oven. Preheat the oven to 375°F. Lightly grease a 9-by-13-inch baking dish and set it on a rimmed sheet pan to catch any bubbling sauce.
2. Cook the noodles. Boil the lasagna noodles in salted water until just tender. Drain and lay them flat on a lightly oiled baking sheet so they do not stick together.
3. Sauté the shrimp. Heat the butter and olive oil in a large skillet over medium heat. Add the garlic, salt, pepper, and red pepper flakes. Cook for 30 seconds, then add the shrimp.
4. Finish the scampi mixture. Cook the shrimp for 2 to 3 minutes per side, just until opaque. Remove the skillet from the heat, stir in the lemon juice and parsley, and transfer the shrimp to a plate. Do not overcook them because they will heat again in the oven.
5. Make the white sauce. Melt the 4 tablespoons butter in a saucepan over medium heat. Whisk in the flour and cook for 1 minute. Slowly whisk in the warm milk until smooth, then simmer for 4 to 6 minutes until thick enough to coat a spoon.
6. Season and enrich. Stir in the salt, pepper, and nutmeg. Remove the pan from the heat and whisk in the ricotta until smooth. If using spinach, fold it in now so it wilts slightly.
7. Start layering. Spread about 3/4 cup sauce over the bottom of the baking dish. Add 3 noodles, one-third of the shrimp, 1/2 cup mozzarella, and a sprinkle of Parmesan.
8. Repeat the layers. Add sauce, noodles, shrimp, mozzarella, and Parmesan two more times. Finish with the remaining noodles, sauce, mozzarella, and Parmesan on top.
9. Bake covered. Cover the dish with foil, keeping the foil from touching the cheese if possible. Bake for 25 minutes.
10. Brown the top. Remove the foil and bake for another 15 to 20 minutes, until the edges bubble and the top is golden. Rest the lasagna for 15 minutes before slicing.

Tips and Variations

• Keep the shrimp tender: Sauté them only until opaque, then let the oven finish the cooking gently.
• Add vegetables: Sauté sliced mushrooms, zucchini, or spinach in the shrimp skillet before making the sauce.
• Use a cheese blend: Replace some mozzarella with provolone or fontina for a silkier, more savory topping.
• Make it spicy: Increase the red pepper flakes or add a pinch of cayenne to the white sauce.
• Brighten the finish: Add lemon zest and parsley after baking instead of extra lemon juice, which can thin the sauce.
• Prevent watery layers: Drain the shrimp after cooking and avoid adding extra liquid from the skillet to the casserole.
• Let it rest: Fifteen minutes gives the sauce time to set so slices stay layered rather than sliding apart.

If your family enjoys layered comfort food, try this lasagna soup with ricotta for a spoonable version. A slow-simmered beef Bolognese makes another excellent pasta-night centerpiece.

Storage and Reheating

Cool leftovers promptly, cover the baking dish tightly, and refrigerate for up to 3 days. Individual portions reheat well in a 350°F oven for 15 to 20 minutes, covered loosely with foil. You can also microwave a slice in 60-second bursts, but the edges may become softer.

To freeze the casserole, assemble it in a freezer-safe dish without baking. Wrap it tightly and freeze for up to 2 months. Thaw overnight in the refrigerator, then bake covered at 375°F until hot in the center, about 45 to 55 minutes, followed by 10 minutes uncovered. For seafood safety, use the USDA’s safe temperature chart when checking that the shrimp and finished casserole are properly heated. The dish contains shellfish and dairy, so review the FDA’s food-allergy guidance when serving guests.

Frequently Asked Questions

How do I keep garlic butter shrimp scampi lasagna from becoming watery?

Pat the shrimp dry, cook them just until opaque, and do not pour excess skillet liquid into the layers. Also simmer the white sauce until it coats a spoon before assembling the casserole.

Can I use cooked shrimp?

Yes, but fold them into the finished sauce rather than sautéing them for several minutes. Warmed cooked shrimp can become rubbery, so add them just before layering and let the oven heat them through.

Can I assemble this lasagna ahead?

Assemble it up to 24 hours ahead, cover tightly, and refrigerate. Let the dish sit on the counter for 20 minutes while the oven heats, then add about 10 minutes to the covered baking time.

What size shrimp is best?

Medium shrimp, about 41 to 50 per pound, are ideal. They are large enough to stay juicy but small enough to distribute evenly across the lasagna.

What should I serve with seafood lasagna?

A crisp green salad, roasted asparagus, garlic bread, or lemony vegetables balance the creamy pasta. Keep the side dishes simple so the shrimp and scampi sauce remain the focus.

Make It a Special Dinner

Set the table while the lasagna rests so the first slice can be served at its best. A little extra parsley, lemon zest, and freshly grated Parmesan make the top look polished without adding work. For a complete menu, begin with a small salad, serve the lasagna with warm bread, and finish with fresh fruit. The creamy layers are generous, so modest side portions are all you need.

Planning the Menu

This casserole is rich enough to be the main event, so pair it with something crisp and uncomplicated. A lemon-dressed green salad cuts through the white sauce, while roasted broccoli or asparagus adds color. If you want another pasta option for a different night, this creamy chicken spaghetti has a similar cozy spirit with a chicken-based sauce. For a dinner party, assemble the lasagna before guests arrive and bake it while everyone enjoys a small salad. Letting the dish rest also gives you time to warm bread and set out extra lemon wedges.