BRUSH chicken and peppers with half of the dressing. Place on greased grill over medium heat.
GRILL 5 minutes on each side or until chicken is cooked through. Cut chicken diagonally into strips; cut peppers into thin strips. Place grilled peppers, salad greens and oranges in large bowl. Add remaining dressing; toss lightly.
FOR each serving: Place 2 cups of the lettuce mixture on serving plate; top with 2 oz. of the chicken strips. Sprinkle with 1/2 tsp. sesame seed.