PLACE chops, 1/4 cup of the dressing and seasoning in resealable plastic bag or bowl; turning to coat chops. Refrigerate 10 min. to marinate.
REMOVE pork chops from marinade; discard marinade. Cook chops in large skillet on medium heat 4 min. on each side. Remove from skillet; keep warm.
HEAT walnuts in skillet on medium heat 3 min., stirring constantly. Add remaining dressing, green beans and tomatoes; cover. Cook 3 min. Pour water into skillet; stir. Return chops to skillet; cook until temperature reaches 160°F. Sprinkle with cheese. Serve immediately.