Peel the courgettes, cut them into slices and salt them. Dip them in flour and fry them until golden. Sauce: 4-5 tablespoons oil saute 1 small head finely chopped onion and 5-6 cloves garlic, also finely chopped. Add 1 tbsp flour and fry it. Then add 5-6 peeled and grated tomatoes. Add salt to taste and allow the sauce to boil on medium heat. Before you remove it from the heat, add chopped parsley.