01 -
Preheat the oven to 175°C. Cook lasagna noodles in boiling salted water until al dente, about 8–10 minutes. Drain and rinse under cold water; set aside.
02 -
Melt butter in a large skillet over medium heat. Add minced onion and cook, stirring frequently, until tender, approximately 5 minutes. Remove from heat.
03 -
Stir cottage cheese, softened cream cheese, beaten egg, dried basil, salt, and ground black pepper into the skillet with the cooked onions until fully combined. Set aside.
04 -
In a large bowl, mix condensed cream of mushroom soup, cooked shrimp, drained crabmeat, milk, and white wine until well blended. Set aside.
05 -
Place three lasagna noodles in the bottom of a 23x33 cm (9x13 inch) baking dish. Layer one-third of the cheese mixture evenly over noodles, then one-third of the seafood sauce. Repeat two more times, finishing with sauce.
06 -
Sprinkle shredded Cheddar and grated Parmesan evenly over the top layer.
07 -
Bake in the preheated oven for approximately 45 minutes until heated through and bubbly, with golden cheese on top. Allow to rest for 10 minutes before slicing and serving.