PREHEAT oven to 375°F. Brown meat with peppers in large skillet; drain. Return meat mixture to skillet. Stir in salsa, tomatoes with their liquid and the corn.

SPOON 1 cup of the meat mixture onto bottom of 13x9-inch baking dish. Top with 6 of the tortillas, overlapping as necessary to fit in dish. Spoon half of the remaining meat mixture over tortillas in dish; top with 1/2 cup of the cheese. Top with remaining 6 tortillas and remaining meat mixture. Cover with foil.

BAKE 25 to 30 min. or until heated through. Remove from oven; uncover. Sprinkle with remaining 1/2 cup cheese. Let stand 5 min. or until cheese is melted.