1.Cut 8-inch round of cooking parchment paper. Place in bottom of air fryer basket. Spray with cooking spray.
2.In shallow dish, mix flour and seasoning. In another shallow dish, place ranch dressing. In third shallow dish, mix bread crumbs and cheddar cheese. Coat chicken with flour mixture; dip into ranch dressing, then coat with bread crumb mixture, pressing to adhere.
3.Place chicken on parchment in air fryer basket, standing chicken against sides of basket, if necessary. Set to 325°F; cook 10 minutes. Turn chicken; cook 10 to 15 minutes longer or until chicken is no longer pink in center.