DRAIN peppers, reserving 1/4 cup liquid. Place meat in slow cooker; top with peppers, reserved liquid and dressing. Cover with lid.
COOK on LOW 6 to 8 hours (or on HIGH 4 to 6 hours). Remove meat from slow cooker, reserving peppers and 1-1/2 cups liquid in cooker. Discard excess liquid. Shred meat with 2 forks; return to cooker. Stir in cheese.
SERVE in bread.