PREHEAT barbecue to medium heat. Sprinkle 2 Tbsp. cheese onto half of each tortilla; top with 1 Tbsp. each of the salsa and cilantro. Fold tortillas in half; press lightly to secure.
GRILL 1 to 2 min. on each side or until cheese is melted and quesadillas are lightly browned on both sides.
CUT each quesadilla in half to serve.