How to Make It
Sprinkle chicken evenly with 1/8 teaspoon each salt and pepper. Place chicken on grill rack coated with cooking spray; grill 5 to 7 minutes on each side or until done.
Combine spinach, grapes, and sesame seeds in a large bowl. Combine vinegar, grape juice, sesame oil, and remaining salt and pepper.
Slice chicken diagonally into thin slices. Toss chicken with spinach mixture. Drizzle vinaigrette over salad.
Cooking Light Superfast Suppers