Rinse and dry the crabs and the fish fillet, cut the fish into cubes. Marinate with the juice of one lemon, herbs and pepper.
Cut the leek into rings and sauté with the finely chopped garlic cloves in the olive oil for 5 minutes until soft. Add the skinned tomato quarters, season with salt and freshly ground pepper.
Pour some of the béchamel sauce into a 2-liter ovenproof dish. Alternate layers of lasagna frutti di mare, vegetables, plates and grated parmesan cheese. Season each layer with salt and pepper and pour sauce over it. Top layer. Sauce and remaining parmesan cheese. Bake in the oven at 200 degrees for about
Bake for 20 minutes uncovered.
Our tip: As an alternative to fresh herbs, you can use frozen ones – they also stand out for their fresh taste!