SPREAD tortillas evenly with cream cheese; top half of each of tortilla with remaining ingredients. Fold tortillas in half.
HEAT large skillet sprayed with cooking spray on medium heat. Add 1 quesadilla; cook 4 to 5 min. or until golden brown on both sides, turning after 2 to 3 min. Repeat with remaining quesadilla. Cut into wedges. Serve with salsa.
Prepare using shredded cooked chicken.