1. Prepare grill.
2. Brush chicken with 1 tablespoon vinaigrette. Place chicken, zucchini, and onion on a grill rack coated with cooking spray. Grill 3 to 4 minutes on each side or until chicken is done and vegetables are tender, adding tomato halves to grill rack after 2 minutes. Cook tomato 2 minutes on each side. Remove chicken and vegetables from grill. Cut chicken crosswise into thin slices; coarsely chop vegetables.
3. Combine chicken, vegetables, and remaining 6 tablespoons vinaigrette in a large bowl, tossing to coat. Add arugula and cheese; toss gently.
Serve with: Grilled Garlic Bread
Serve now of later This salad is delicious served immediately, but leftovers make an equally tasty chilled lunch-to-go. Just be sure to pack the vegetable and chicken mixture, salad greens, and salad dressing in separate containers, and toss them together right before serving.
MyRecipes is working with Let's Move!, the Partnership for a Healthier America, and USDA's MyPlate to give anyone looking for healthier options access to a trove of recipes that will help them create healthy, tasty plates. For more information about creating a healthy plate, visit www.choosemyplate.gov.