1 Worcestershire Sauce
1/2 Ground Mustard
1/4 Garlic Powder
1 Boneless Skinless Chicken Breast Halves
In a shallow bowl, combine the butter, Worcestershire sauce, mustard, garlic salt and pepper.
Dip chicken in the butter mixture, then coat with onions.
Place in a greased 9-inch square baking pan.
Top with any remaining onions; drizzle with any remaining butter mixture.
Bake uncovered at 350 degrees for 30-35 minutes or until chicken juices run clear.