1. Heat oven to 400˚F. Toss potatoes with dressing in 13x9-inch nonstick pan; sprinkle with 1/2 teaspoon of chili powder. Bake 25 minutes
2. Stir potatoes; push to sides of pan. Place chicken in single layer in center of pan; sprinkle with remaining chili powder. Drizzle with barbecue sauce.
3. Bake 20 minutes or until chicken is done (165°F) and potatoes are tender. Transfer chicken to platter. Stir potatoes to evenly coat with pan drippings. Spoon around chicken on platter; top with Parmesan.