It is best to take the time to boil the lasagne first -if not, the pasta tends to draw moisture from the sauce as it cooks, and the finished dish can be dry.
Bring a large saucepan of salted water to the boil. Add the lasagne sheets, one at a time so that they don’t stick together. Cook for 5 minutes, then drain and tip the lasagne into a bowl of cold water. Drain again and pat dry with kitchen paper.
To make the white sauce, put the milk and garlic into a small saucepan and heat gently until warm. Melt the butter in a separate saucepan, then stir in the flour and cook for 1 minute. Gradually add the warm milk, stirring constantly to make a smooth sauce.
Bring to the boil, then simmer for 2-3 minutes. Remove and discard the garlic clove. Add salt and pepper to taste.
Put 3-4 tablespoons of the Classic Bolognese Sauce into the baking dish, spread evenly across the base of the dish and cover with a layer of lasagne.
Spoon over some white sauce and a few pieces of mozzarella and continue adding layers, starting with another layer of bolognese sauce and finishing with the white sauce and mozzarella, until all the ingredients have been used.
Sprinkle with black pepper and Parmesan, then bake in the preheated oven for 30 minutes until the top is crusty and golden. Pasta Bakes-Classic Lasagne Recipe-pasta per lasagne www.eatopic.com