Chicken Cordon Bleu
["6 chicken breast fillets", "6 thin slices ham", "6 thin slices Swiss cheese", "1 envelope Shake and Bake coating mix", "1/4 c. Parmesan cheese", "1/2 (10 oz.) can cream of mushroom soup", "1/2 c. sour cream", "1/4 c. mayonnaise", "1 egg yolk, beaten"]
["Pound chicken flat.", "Top with ham and cheese.", "Roll up; secure with a toothpick.", "Coat with Shake and Bake.", "Refrigerate, covered with plastic wrap for 2 to 4 hours.", "Let stand at room temperature for 15 to 30 minutes."]
["chicken", "thin slices ham", "thin slices Swiss cheese", "coating mix", "Parmesan cheese", "cream of mushroom soup", "sour cream", "mayonnaise", "egg yolk"]