
Heat oven to 425°F. Spray 13 x 9-inch (3-quart) baking dish with cooking spray.
Make cuts 1/2 inch apart on each chicken breast from top to almost bottom, forming pockets, being careful not to cut all the way through.
Sprinkle barbecue seasoning all over chicken. Cut bacon slices into thirds to make 6 pieces. Cut Cheddar slices into fourths to make 12 pieces.
Alternate placing cheese and bacon pieces into each slit in chicken. Add extra cheese or bacon to slits if there is any left.
Bake uncovered about 15 minutes or until chicken is no longer pink. Let stand 5 minutes before serving.