Crust cut. Cut 5 slices that are squashed with a rolling pin. In a deep dish mix the feta cheese, cream, mustard and parsley. Mix well. The slices are coated with the mixture and cover with ham. Slices winding rolls, wrap up tight in foil and place in the freezer. Rolls are removed from the freezer 5 hours before serving. While still frozen cut into separate rings 5 ​​