Place the chicken breasts in a single layer across the bottom of a glass baking dish sprayed with non stick spray.

Spread barbecue sauce on the top of each chicken breast.

Sprinkle the onions evenly over the top of the chicken breasts then top with cheese.

Bake in an oven preheated to 350?F for 40-50 minutes or until the juices run clear and the center is no longer pink.

Serve hot over rice or greens.

Enjoy!