In medium bowl, marinate chicken breasts with ¼ cup Marie’s Lemon Herb Vinaigrette Dressing and chill for 1 hour. Preheat grill or grill pan to medium high heat. Place marinated chicken on hot grill and cook for 5-7 minutes on each side, turning once. Slice and brush each deli rolls with 1 tablespoon of Marie’s Lemon Herb Vinaigrette Dressing. Add grilled chicken, sliced tomatoes and spinach leaves to complete sandwich.