HEAT oven to 375ºF.
POUND chicken to 1/4-inch thickness; place smooth-sides down, on work surface. Brush with half the barbecue sauce; sprinkle with pepper.
TOP with prunes, olives and cheese. Roll up, starting at one short end of each. Wrap with bacon; place, seam sides down, in baking dish sprayed with cooking spray. Brush with remaining barbecue sauce.
BAKE 30 min. or until chicken is done (165ºF).