Drain the mozzarella. Wash, clean and slice the tomatoes. Remove the crusts from bread. Cover one slice each with mozzarella, tomato slices and basil leaves, leaving the edges of the bread free. Season with salt and pepper. Cover with a second slice, dip the edges briefly in cold water and press down. Whisk eggs and milk.
Season with salt and pepper. Dust the bread with flour and put it on a deep plate. Pour egg milk over it and let it stand until all liquid is absorbed. Turn once in between. Heat the oil in a pan and fry the breads on each side for about 3 minutes until golden brown. Drain on kitchen paper