1. Heat oven to 375°F. 2. Mix bread crumbs and milk in large bowl; let stand 5 min. Add all remaining ingredients except barbecue sauce; mix just until blended. Shape into 84 (1-inch) balls. 3. Place on rimmed baking sheet sprayed with cooking spray. 4. Bake 20 min. or until done (160ºF). Transfer to slow cooker. Add barbecue sauce; cover with lid. Cook on LOW 2 to 4 hours (or on HIGH 1 to 2 hours).