1) Press lemon pepper evenly onto steaks. Place steaks on grid over medium, ash-covered coals. Grill, covered, 12 to 17 minutes (over medium heat on preheated gas grill, 12 to 16 minutes) for medium rare (145degreesF) to medium (160degreesF) doneness, turning occasionally. 2) Meanwhile, combine spinach, cheese and basil in large bowl. Drizzle with balsamic vinegar; toss to coat and set aside. 3) Remove steak from grill and let stand 5 minutes. Place naan on grill; grill, covered, 1 to 3 minutes or until lightly browned, turning once. 4) Carve steaks into slices. Top naan evenly with spinach mixture and steak slices.