Lightly coat an unheated large skillet with cooking spray; set aside. Combine egg white, onion, apples, oats, parsley, salt, sage, nutmeg, black pepper, and ground red pepper in a medium bowl. Add turkey; mix well. Shape mixture into eight 2-inch-diameter patties.
Heat skillet over medium heat. Cook patties 10 to 12 minutes or until meat is no longer pink and juices run clear, turning once. Drain off fat. Makes 8 servings.