Preheat oven to 350°.
Combine first 4 ingredients in a small bowl; toss gently. Set aside.
Combine mustard and hot pepper sauce; stir well.
Place chicken on a broiler pan coated with cooking spray. Spread mustard mixture evenly over chicken. Bake at 350° for 20 minutes. Sprinkle cheese mixture evenly on chicken. Bake an additional 5 minutes or until cheese is slightly melted. Sprinkle with pepper.