Seafood Lasagna with Spinach is a luxurious and hearty variation of the traditional lasagna, featuring a rich combination of seafood, creamy béchamel sauce, and fresh spinach layered between sheets of pasta. This indulgent dish is perfect for special occasions or whenever you want to elevate your usual lasagna recipe with the delicate flavors of shrimp, scallops, or other seafood, balanced by the freshness of spinach and the creaminess of the sauce.
The base of this lasagna is a creamy béchamel sauce made with butter, flour, milk, and a touch of nutmeg. The béchamel adds a silky, velvety texture that perfectly binds the layers together. For added richness, Parmesan cheese is mixed into the sauce, providing a sharp contrast to the sweetness of the seafood.
The seafood filling, made from a mix of shrimp, scallops, and other shellfish, is sautéed until just cooked, ensuring it stays tender and flavorful. The seafood is then combined with spinach, which adds a fresh, slightly earthy flavor that complements the delicate sweetness of the seafood. The spinach is wilted, allowing it to blend seamlessly into the dish without releasing excess moisture.
The layers of lasagna are built by alternating sheets of pasta, the seafood and spinach mixture, and the creamy béchamel sauce, creating a comforting, indulgent dish that’s rich in flavor but not overly heavy. The lasagna is topped with a blend of mozzarella and Parmesan cheeses, which melt beautifully into a golden, bubbly crust as the dish bakes.
Once baked, the lasagna is a masterpiece of layers: the pasta is tender and slightly chewy, the seafood and spinach mixture is flavorful and succulent, and the sauce binds it all together in a rich, creamy embrace. A sprinkle of fresh herbs, such as parsley or basil, on top adds a bright, fragrant finish.
Seafood Lasagna is perfect for anyone who loves seafood and wants to try something different with their lasagna. It’s a perfect dish for a dinner party, holiday gathering, or a cozy family meal that feels special yet comforting.
In summary, this lasagna takes the classic lasagna and elevates it with the delicate flavors of seafood and the freshness of spinach, all wrapped in a creamy béchamel sauce. It’s a rich, indulgent dish that’s perfect for any occasion, offering a flavorful and luxurious twist on a traditional favorite.

Ingredients
- 9 lasagna noodles
- 1/4 cup butter
- 1 onion chopped
- 2 cloves garlic minced
- 1/4 cup all-purpose flour
- 1/2 tsp salt
- 2 cups milk
- 1 1/2 cup chicken broth
- 4 cups shredded mozzarella cheese divided
- 1 cup parmesan cheese divided, grated
- 1 tsp dried basil
- 1 tsp dried oregano
- 1/2 tsp thyme dried
- 1/2 tsp dried parsley
- 1/2 tsp tarragon dried
- 1/2 tsp paprika
- 1/4 tsp cayenne pepper
- 1 pound shrimp peeled and deveined, cooked
- 1 pound cooked crabmeat
- 1 package spinach 10 ounce, thawed and drained, frozen, chopped
Instructions
- Preheat oven to 350 degrees F (175 degrees C).
- Bring a large pot of lightly salted water to a boil. Cook lasagna noodles in boiling water for 8 to 10 minutes. Drain, and rinse with cold water.
- In a large saucepan, melt butter over medium heat. Cook onion and garlic in butter until tender, stirring frequently. Stir in flour and salt; simmer until bubbly. Mix in the milk and chicken broth, a little at a time, stirring constantly. Bring to a boil and cook for 2 minutes. Remove from heat and stir in 2 cups mozzarella cheese and 1/2 cup Parmesan cheese. Season with basil, oregano, thyme, parsley, tarragon, paprika, and cayenne pepper.
- Layer 1/3 of the lasagna noodles, 1/2 of the shrimp and 1/2 of the crabmeat, 1/2 of the spinach, and 1/3 of the sauce mixture in an 11x7 inch baking dish. Repeat layers, and top with remaining noodles and sauce. Sprinkle with remaining mozzarella and Parmesan cheese. Bake uncovered for 40 minutes. Let stand 10 minutes before serving.
Nutrition










Isn’t lasagna supposed to have ground meat? This recipe is weird. 1 star for that.
This is the best lasagna I’ve ever made! The seafood combo is just delicious. Five stars!
I was skeptical about seafood in lasagna, but this turned out surprisingly good! I was worried the flavors would clash, but they didn’t. Will make again! 😊
My kids loved it, but not sure I wanna tell them it’s seafood. They think all pasta should be cheese or meat. LOL!
Absolutely delicious! This seafood lasagna is a hit at our dinner parties. So cheesy and packed with flavor! 😍
Seafood and dairy? Sounds like a recipe for disaster to me. Not gonna risk it.
Took longer than I thought. But it turned out yummy! Will make again, just have to be prepared.
Looks fancy but actually quite easy! Highly recommend!
Delicious! Just what I needed. Will make again for sure!
Seems like a lot of work for a dish… but I’m willing to try it! Fingers crossed!
I can’t even pronounce half of these spices! Do I really need tarragon? Anyway, I’ll try it without.
You don’t really need tarragon! I leave it out too, it still tastes great! Good luck!
Do I really need to boil the noodles? Can’t I just layer them dry?
YOU GUYS!!! This is like heaven on a plate! So rich and creamy! I added more garlic. YUM!
Yuck! My family didn’t like this at all. The fish tasted off. Maybe fresh seafood would be better? 1 star for effort.
I totally get you! My first try was a flop too. Maybe next time fresh seafood will help! 🤔
This lasagna was a hit at our family dinner! So creamy and delicious!
So easy to make! I added some scallops for an extra kick.
The sauce was a bit too salty for me. Maybe less salt next time?
Yeah, I found it salty too! I used less salt and it turned out great.
This recipe is a seafood lover’s dream! My family devoured it!
Looks tasty, but I have my doubts about seafood in lasagna. Just sounds weird to me.
I’m so glad to hear your family loved it! Seafood lasagna is one of my favorites too!
Love this dish! Made it last weekend and everyone loved it! Spinach adds a nice touch. 👍🏻
OMG! I can’t believe how good this is! I was skeptical about seafood in lasagna but this changed my mind! <3
I had the same reaction! Seafood lasagna is surprisingly amazing! I usually stick to meat but this is a game changer! 🔥
Lasagna no strong, put in on plate should taste good
Hmm, not sure about shrimp and crab in lasagna. Sounds strange. I think I’ll stick to the traditional meat version.
Yum! My husband can be picky but he loved it. Will make again!
Glad he liked it! But… seafood in lasagna? I dunno, seems a bit weird to me. Does it really taste good?
That’s awesome! It’s always nice when a picky eater enjoys something. What did you serve it with?
Um, I didn’t have all the ingredients, so I just used whatever was in the pantry… it still turned out ok, but not as good.
Was super confused about the herbs. Can I just throw in whatever? It needs a instruction for dummies.
Instructions for dummies? Come on, it’s not that hard. Just follow the steps! 🤷♂️
I feel you! Just pick some herbs you like, it’ll probably still taste good. 👌
Eh, it was okay. A bit too fishy for my taste. Might skip the seafood next time.
I was skeptical about seafood in lasagna, but it actually worked! Just remember to season well.
I’m so glad you enjoyed it! I didn’t think seafood lasagna would work either, but it was surprisingly good when I made it too. Just like you said, seasoning is key!
Seafood in lasagna? Really? That’s kinda weird. I prefer it the classic way. But if you say it’s good, maybe I’ll try it! 🤔
Made this for my family and they loved it! Super easy to follow and full of flavor.
I don’t see how this could be good. Lasagna is for meat, not shrimp and crab. Sounds weird to me. 🤔
I don’t know, sounds kinda weird to put seafood in lasagna…
I agree! Seafood in lasagna is very unusual. I would much rather stick to the classic meat version.
Love the spinach! Great way to get my greens in. Also, cheese is life!
Totally agree! Spinach and cheese make everything better. Can’t wait to make this!
I dunno about all that. Spinach in lasagna? Seems weird to me. I prefer the classic.
I ain’t got time for all these layers and stuff. Threw everything in a pot, and it was fine!
A little too spicy for me, but I can see how others might love it. Not my fave.
I thought lasagna was supposed to be beefy! WHY seafood? Seems weird but I tried it for my seafood-loving friend.
It looked fancy but took way too long to make. I got frustrated halfway. Maybe I’m just not cut out for this.
I get it! Some recipes are way too complicated. Maybe try simpler ones until you feel more confident? Cooking should be fun, not a headache!
No way this is good, seafood with pasta? Yuck. I’ll stick to the classic meat one.
This lasagna was amazing! So cheesy and flavorful. Definitely a hit at our family dinner.
I’m so glad you enjoyed it! The cheese really makes it special, doesn’t it? I’m definitely going to make this for my next family gathering!
Sounds fancy, but seafood in lasagna? Really? I think I’ll stick to my mom’s classic beef version. But glad it worked for you!
Tried this without the shrimp (allergic) and it still came out good! Used extra crab and some spinach.
I tried making this but ended up forgetting the thyme. It tasted fine, but I think it would be even better with all the spices.
Delicious! Who knew seafood could be a lasagna filling? I used crab sticks instead of crabmeat and it still tasted great!
Seafood in lasagna? What a strange combo! But it surprisingly worked. I’m a fan now!
Great recipe! Made it for my family dinner and everyone loved it. Just the right amount of spice.
Thanks for sharing! I’ll definitely try this for my next family gathering.
It was too rich for me. I think I prefer traditional meat lasagna. But that’s just my opinion!
Yum. More sea food on my plate is always a good sign. Will definitely make again!
This lasagna is seriously amazing! I added some extra cheese and it turned out perfect. Highly recommend!
Yum! Will make again soon! 😋
Fish in lasagna sounds gross! Not sure why anyone would wanna eat that.
Eww! Fish and lasagna don’t go together! Stick to meat or veggies, that’s real lasagna.
I actually think it sounds unique! Seafood brings a different flavor to lasagna, and I love shrimp. Can’t wait to try it!
The recipe was okay, but it felt like too much cheese. Like, maybe cut back a bit next time? Too rich.
This lasagna is to die for! I never thought seafood could work in lasagna, but it’s amazing!
Not sure if I did it right. My noodles were a bit mushy and the sauce seemed more like a soup. Could use better instructions!
Sounds like you may have overcooked the noodles! Follow the times indicated and maybe let the sauce simmer a bit longer to thicken. But hey, it still probably tasted good!
I had the same issue! My noodles turned out mushy too. Maybe try cooking them for a shorter time? The sauce was pretty soupy for me as well. I think I may have messed it up somehow.
BEST SEAFOOD LASAGNA EVER!!! Totally impressed my family, and now they want it every week 🙂
This was a disaster in my kitchen… I burned the sauce and my cheese didn’t melt well. Ugh.
Did anyone else have trouble with the noodles sticking together? I think maybe I did something wrong.
I’m skeptical about mixing seafood and pasta. Just sounds weird to me. Has anyone tried changing it up with chicken?
Seafood lasagna? That sounds gross! Chicken would probably be better but pasta and seafood is like mixing oil and water, just… no.
I totally get your skepticism! Mixing seafood with pasta can be a bit of a reach for some. I’ve tried with chicken, and honestly, it’s a game changer! You should give it a shot!
So good! The shrimp and crab were just perfect together! Overall a great dish for special occasions.