Meat Loaf Puff
["1 beaten egg", "3/4 c. milk", "1 1/2 c. soft bread crumbs (2 slices)", "1/2 c. chopped onion", "1 1/2 tsp. salt", "1/8 tsp. pepper", "1 1/2 lb. ground beef", "2 medium tomatoes, peeled and sliced", "6 slices American cheese", "3 egg whites", "1 c. dairy sour cream", "3/4 c. all-purpose flour", "1/2 tsp. salt", "dash of pepper", "3 egg yolks"]
["In a large bowl, combine the 1 beaten egg and milk.", "Stir in soft bread crumbs, onion, 1 1/2 teaspoons of salt and 1/8 teaspoon pepper.", "Add ground beef; mix well.", "Put meat mixture into an 8 x 8 x 2-inch baking dish.", "Bake at 350\u00b0 for 25 minutes.", "Drain off excess fat.", "Arrange tomato slices atop partially baked meat loaf. Sprinkle with a little salt and pepper.", "Cover with American cheese slices."]
["egg", "milk", "bread crumbs", "onion", "salt", "pepper", "ground beef", "tomatoes", "American cheese", "egg whites", "sour cream", "all-purpose", "salt", "pepper", "egg yolks"]