You want a show-stopping dinner. But it’s a Wednesday. I get it. Your energy is low. The clock is ticking.
We need a hero. A meal that feels fancy but works like a weeknight warrior. Enter this Seafood Lasagna with White Sauce. If you love creamy, garlicky pasta dishes, you must try our White Garlic Sauce Shrimp Lasagna Soup for another quick and luxurious option.
It’s creamy, luxurious, and packed with flavor. But here’s the best part. It’s built for speed. No all-day simmering. We use smart shortcuts and maximum flavor tricks.
Let’s turn a regular night into a coastal vacation. Without the hassle.
Recipe Overview
- Cuisine: Italian-American
- Category: Baked Dinner
- Prep Time: 25 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 10 minutes
- Servings: 8
Ultimate Guide to Seafood Lasagna with White Sauce
This is your only guide. Why? Because I’ve tested every corner of this recipe. I’ve cut every possible minute.
We skip the red sauce. Instead, we use a rich, garlicky white sauce. It lets the sweet seafood shine. The combo of shrimp and crab is classic. It feels indulgent.
But the method is pure busy-cook genius. We use no-boil lasagna noodles. They save you a pot and 15 minutes. The bechamel sauce comes together in one saucepan. It’s a 10-minute miracle.
You get layers of flavor. Tender pasta. Creamy sauce. Sweet seafood. Golden, bubbly cheese. All in one dish. It’s perfect for feeding a crowd. Or for making amazing leftovers.
This recipe proves you can have it all. Incredible taste. And your sanity back.
Seafood Lasagna with White Sauce Recipe
The Simple Ingredients
Let’s Get Cooking! (The Step-by-Step)
Notes
Enjoy your homemade Seafood Lasagna with White Sauce Recipe!
Nutrition Information
The Simple Ingredients
Gather these. Most are pantry and fridge staples. The seafood is easy to find. I use frozen often. It’s a total time-saver.
- 12 no-boil lasagna noodles
- 4 tbsp butter
- 4 tbsp all-purpose flour
- 3 1/2 cups whole milk
- 3 cloves garlic, minced
- 1/2 tsp nutmeg (trust me!)
- Salt and black pepper
- 1 lb medium shrimp, peeled and deveined
- 8 oz lump crab meat
- 1 cup grated Parmesan cheese, divided
- 4 cups shredded mozzarella cheese, divided
- 2 tbsp fresh parsley, chopped
Let’s Get Cooking! (The Step-by-Step)
Ready? Put on some music. Preheat that oven. Let’s move fast and have fun.
- Preheat your oven to 375°F (190°C). Grab a 9×13 inch baking dish. Give it a quick spray with oil.
- Make the bechamel sauce. Melt the butter in a large saucepan over medium heat. Add the flour. Whisk for 1 minute. It will look pasty.
- Slowly pour in the milk. Whisk constantly. No lumps allowed! Keep whisking for 5-7 minutes. The sauce will thicken. It should coat the back of a spoon.
- Add the garlic, nutmeg, a big pinch of salt, and pepper. Stir. Take it off the heat. Stir in 1/2 cup of the Parmesan cheese. Set aside.
- Prep your seafood. Chop the shrimp into bite-sized pieces. Check the crab for any shells. In a bowl, mix shrimp, crab, and the parsley.
- Now, build the lasagna. Spread 1/2 cup of the white sauce in the bottom of your dish. This prevents sticking.
- Layer 4 lasagna noodles over the sauce. They might overlap a little. That’s fine.
- Top the noodles with 1/3 of the seafood mix. Sprinkle with 1 cup of mozzarella. Then, spoon over about 3/4 cup of the white sauce.
- Repeat. Do two more layers exactly the same: noodles, seafood, mozzarella, sauce.
- Top with the last 4 noodles. Pour all the remaining white sauce over the top. Make sure every noodle corner is covered.
- Sprinkle the last 1 cup of mozzarella and the remaining 1/2 cup of Parmesan over everything.
- Cover the dish tightly with foil. Bake for 30 minutes. Then, remove the foil. Bake for another 15 minutes. You want the top golden and bubbly.
- Let it rest. This is crucial! Wait 10-15 minutes before cutting. It lets the layers set. Then, dig in!
What to Serve With This Dish
Keep it simple. A bright, crisp side cuts the richness perfectly.
A bag of pre-washed greens is your friend. Toss it with lemon vinaigrette. Done.
Garlic bread is never wrong. Use a store-bought loaf. Brush with garlic butter. Toast while the lasagna rests.
Steamed green beans or asparagus also work. A 5-minute blanch in salted water. Drizzle with olive oil.
Make This Recipe Your Own (Quick Swaps)
Make it work for you. Use what you have. Or what you love.
Swap the seafood. Use all shrimp. Or all crab. Scallops are fantastic too. Chopped cooked lobster is a luxury move.
Change the cheese. Fontina melts beautifully. A little gruyere adds nutty flavor. Use what’s in your fridge. For a different take on a cheesy white sauce, our Creamy White Cheddar Lasagna Soup is a smooth and classic choice.
Add veggies. Sautéed spinach is amazing. Layer it with the seafood. Thinly sliced zucchini works too.
How to Store Leftovers (If You Have Any!)
Let the lasagna cool completely. Cover the dish tightly. Or portion into airtight containers.
It keeps in the fridge for up to 3 days. Reheat single servings in the microwave. For larger pieces, use the oven at 350°F until warm.
You can freeze it for up to 2 months. Wrap individual slices well. Thaw in the fridge overnight before reheating.
NUTRITION INFORMATION
- Calories: ~520
- Carbohydrates: 35g
- Protein: 38g
- Fat: 25g
- Saturated Fat: 14g
- Cholesterol: 185mg
- Sodium: 880mg
- Fiber: 1g
- Sugar: 8g
*Estimates per serving. May vary based on specific ingredients used.
FREQUENTLY ASKED QUESTIONS
Can I use regular lasagna noodles?
Yes. But you must boil them first. Follow the package directions. Dry them well on towels before layering. The no-boil kind just saves a step.
My sauce seems too thick. What do I do?
No panic. Just whisk in a little more milk, a splash at a time. Warm the milk first if you can. It will thin right out.
Can I make this ahead?
Absolutely! Assemble the whole dish. Cover and refrigerate for up to 1 day. Add 10-15 minutes to the covered baking time since it’s cold.
See? Fancy dinner is totally doable. You don’t need hours. You just need a solid plan. And this recipe is that plan.
It’s creamy, cheesy, and packed with sweet seafood. It turns an ordinary night into a celebration. Your family will ask for it again. Promise.
Go try this and win back your weeknight! Let me know how it goes by leaving a comment and rating below! And if you’re craving something with a richer, meatier base, don’t miss our hearty Rich Meat Sauce Lasagna Soup Recipe.
