In food processor, place cereal, garlic salt and basil. Cover; process until finely ground like flour. Set aside. In small bowl, beat egg and milk; set aside. Layer 1 piece of ham and 1 piece of cheese on each chicken breast. Roll up and secure each with a toothpick so that cheese and ham is enclosed within chicken. Coat each rolled chicken breast with gluten-free flour blend, then egg mixture, and then cereal mixture. Place in baking dish.