Heat oven to 400°F. Line cookie sheet with foil; spray foil or paper with cooking spray.

Melt the butter in a medium bowl. Mix in honey mustard and garlic salt.

Place bread crumbs in large resealable plastic food-storage bag. Add chicken pieces to mustard mixture; stir to coat. Shake chicken pieces in bag of bread crumbs until coated. Place on cookie sheet. Discard any remaining honey mustard and bread crumbs.

Bake 20 to 25 minutes or until no longer pink in center. Serve with additional honey mustard or dipping sauce of your choice.