Cook beef in large skillet over medium-high heat 7 minutes or until crumbled and no longer pink, stirring occasionally; drain. Stir in Sloppy Joe sauce; heat through.
Remove attached rolls from package; do NOT separate. Cut in half horizontally leaving bottom half slightly thicker than top half. Spread beef mixture evenly over bottom of rolls. Place top of rolls over beef.
Place on serving platter. Have fun pulling sliders apart following roll indentations or cut apart using serrated knife.