HEAT oven to 375ºF.
MAKE cut in one long side of each chicken breast, being careful to not cut through to opposite side.
TOP ham with chiles, cheese and chorizo; roll up. Insert 1 ham roll into pocket of each chicken breast. Brush chicken with mayo; top with cracker crumbs.
POUR salsa onto bottom of 13x9-inch baking dish; top with chicken. Bake 20 to 25 min. or until chicken is done (165°F).