HEAT oven to 425°F.
COMBINE salsa and A.1. Mix 1/3 cup with meat, egg and bread crumbs just until blended.
SHAPE into 48 (1-1/4-inch) meatballs; place on rimmed baking sheet sprayed with cooking spray.
BAKE 12 to 15 min. or until done (160ºF). Place meatballs in serving dish; add remaining salsa mixture and stir gently to coat.