HEAT oven to 375ºF.
HEAT oil in large skillet on medium heat. Add chicken and garlic; cook and stir 6 to 7 min. or until chicken is done. Stir in all remaining ingredients except bacon.
SPOON into 1-1/2 qt. casserole sprayed with cooking spray; cover.
BAKE 25 min. or until heated through, uncovering and sprinkling with bacon after 15 min.