CREAMY SWISS CHICKEN BAKE

INGREDIENTS:

2 pounds boneless chicken breasts, pounded to an even thickness
8 ounces Swiss cheese, sliced or shredded
1/2 cup mayonnaise
1/2 cup sour cream
1/2 cup Parmesan cheese
1/2 teaspoon salt
1/2 teaspoon pepper 1 teaspoon garlic powder
1/4 cup Parmesan cheese, for the top

INSTRUCTIONS: