Preheat oven to 350 degrees. Spray Pam on a cookie sheet. In a bowl beat egg white with fork until frothy. Take each chicken breast and place them first in egg white, then, bread crumbs. When complete place on baking sheet and add first turkey slice and then Swiss cheese. If you would like to add the tomato for garnish do so at this time. Place in oven for 20 minutes or until chicken is fully cooked. There ya have it a classic dish with a lot less calories!