Pour dressing over steak in large resealable plastic bag. Seal bag; turn to evenly coat steak with the marinade. Refrigerate at least 3 hours to marinate, turning occasionally.

Preheat grill to medium-high heat. Remove steak from marinade; discard bag and marinade.

Grill steak 5 min. on each side or until medium doneness (160°F). Remove from grill; cover with foil. Let stand 5 min. Cut steak diagonally across the grain into thin slices.