Step 1

Place meat in slow cooker sprayed with cooking spray, cutting into 2 pieces if necessary to fit; top with yellow onions and barbecue sauce. Cover with lid. Cook on LOW 10 to 12 hours (or on HIGH 5 to 6 hours).

Step 2

Remove meat from slow cooker; cut across the grain into thin slices. Return to slow cooker; stir until evenly coated with sauce. Combine coleslaw blend, dressing and green onions.

Step 3

Fill rolls with meat mixture and coleslaw just before serving.