Ingredients For the Lasagne 250 g precooked lasagne sheets 90 g mozzarella cheese thinly sliced 1/4 cup grated Parmesan cheese For the Meat Sauce 4 tablespoons of olive oil 1 onion, peeled and chopped 2 cloves garlic, peeled and crushed 1 carrot peeled and chopped 1 Stick celery, chopped 500g minced beef 2 rashers of...