Step 1: In a large bowl, combine the tomatoes, watermelon and raspberries. In a small bowl, whisk the basil, oil, vinegar, salt and pepper. Drizzle over tomato mixture; toss to coat. Divide salad greens among 6 serving plates; top with tomato mixture and chicken.
Combine 1 1/2 tablespoons garlic, 1/2 teaspoon salt, 1/2 teaspoon pepper, and sage in a small bowl. Remove and discard giblets and neck from chicken. Starting at neck cavity, loosen skin from breast and drumsticks by inserting fingers, gently pushing between skin and meat. Lift wing tips up and over back; tuck under chicken. Rub garlic mixture under loosened skin. Place chicken, breast side up, on rack of a broiler pan coated with cooking spray. Place rack in broiler pan.
Step 3
Combine potatoes, squash, butter, 1 1/2 teaspoons garlic, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Arrange vegetable mixture around chicken. Bake at 400° for 1 hour or until a thermometer inserted into meaty part of thigh registers 165°. Let stand 10 minutes. Discard skin.