01 -
Preheat oven to 350°F (180°C). Lightly grease a 9 x 13-inch baking dish with butter or non-stick spray, then set aside.
02 -
In a saucepan over medium heat, melt butter. Add flour and stir continuously for 1 minute until lightly golden. Gradually pour in milk while whisking until sauce is smooth and begins to thicken. Stir in parmesan cheese and remove from heat.
03 -
Combine ricotta cheese, shredded mozzarella cheese, beaten egg, dried parsley, and salt in a bowl. Mix thoroughly until smooth and uniform.
04 -
Heat olive oil in a skillet over medium heat. Add seafood mix, salt, pepper, and parsley. Sauté for about 3 minutes, stirring occasionally, until seafood is just cooked through and opaque. Remove from heat.
05 -
Spread a layer of béchamel sauce on the bottom of the prepared baking dish. Arrange lasagna noodles over the sauce. Spread one-third of ricotta mixture evenly on noodles, followed by one-third of the seafood mixture and one-third of remaining béchamel. Repeat these steps two more times for a total of three layers, finishing with béchamel. Top with shredded mozzarella cheese.
06 -
Bake in preheated oven for 35 minutes. If cheese browns too quickly, loosely cover with foil until cheese is melted and sauce is bubbly.
07 -
Remove from oven and allow lasagna to cool for 10 minutes to set. Slice and serve hot.