How to Make It
Preheat oven to 375°.
Combine first 6 ingredients in a large zip-top plastic bag. Add the chicken; seal and marinate in refrigerator for 2 hours, turning bag occasionally.
Combine mustard and the next 5 ingredients (mustard through toast) in a blender or food processor; process until finely ground. Place 1/2 cup crumb mixture in a shallow dish; reserve remaining crumb mixture for another use.
Remove chicken from bag; dredge in crumb mixture. Place the chicken, breast sides up, on a jelly-roll pan coated with cooking spray. Bake at 375° for 40 minutes or until done.