Brown meat in large skillet; drain. Return meat to skillet. Stir in salsa and seasoning mix; simmer on medium-low heat 10 min., stirring occasionally
Spread 1/2 cup meat mixture on bottom of 8-square baking dish sprayed with cooking spray; top with 2 tortillas. Cover with layers of 1/2 cup meat mixture, half beans, 1/2 cup cheese and 2 tortillas; repeat. Top with remaining meat and cheese; cover
Bake 30 min.; uncover. Let stand 5 min. Top with remaining ingredients
