Shells are cleaned and are flooded with water at a ratio of 1: 2. Boil at low boil for 10-15 minutes, until the shells open. As prepared meat is separated from the shell, washed again, flavor and returns to the half shell. Top smeared with cream and sprinkle with grated cheese. Mussels are arranged in a baking dish with a little water and baked. Serve with lemon.