Heat oven to 425°F. Line shallow baking pan with foil; spray foil with nonstick cooking spray. In small bowl, combine honey, mustard, 1/4 teaspoon salt and 1/4 teaspoon pepper; blend well. Reserve half of honey mustard mixture in a second small bowl. Place chicken breast halves in sprayed foil-lined pan. Spread chicken with one half of honey-mustard mixture.