Chicken Roll-Ups
["3 whole chicken breasts, split, skinned and boned", "1 (4 1/2 oz.) pkg. Danish cooked ham, cut into 2-inch strips", "1 c. (4 oz.) shredded Swiss cheese", "1/3 c. dry Italian-style bread crumbs", "2 Tbsp. grated Parmesan cheese", "1 Tbsp. dry parsley flakes", "1/4 c. butter or margarine, melted", "3 green onions, chopped", "1 c. sliced mushrooms", "1/4 c. butter or margarine", "3 Tbsp. flour", "1 c. milk"]
["Place each chicken breast on a sheet of waxed paper; flatten using a meat mallet on rolling pin.", "Place 3 to 4 strips of ham across each chicken breast.", "Sprinkle Swiss cheese evenly over each chicken breast.", "Fold long sides of chicken towards the center; fold in sides of chicken to center, and secure with wooden picks."]
["chicken breasts", "ham", "Swiss cheese", "bread crumbs", "Parmesan cheese", "parsley flakes", "butter", "green onions", "mushrooms", "butter", "flour", "milk"]