1Heat oven to 400°F. Spray large cookie sheet with cooking spray. Place wire rack on cookie sheet.
2Crush cereal into fine crumbs. Place crumbs in shallow dish. Stir in ranch seasoning mix, mixing well. In another shallow dish, place egg whites; beat slightly.
3Dip chicken breasts, one at a time, into egg whites. Coat entirely with cereal mixture. Place on cookie sheet.
4Bake about 30 minutes or until juice of chicken is clear when center of thickest part is cut (at least 165°F). Serve warm, and enjoy!