1 onion red peeled cut into 1/2-inch-wide wedges (leave root end intact)
1.5 teaspoons red wine vinegar
3 pounds chicken breast halves boneless skinless
2 medium tomatoes halved
2 medium zucchini halved lengthwise
Equipment
bowl
grill
cutting board
Directions
Prepare barbecue (medium-high heat).
Place first 5 ingredients in large bowl.
Drizzle oil over and sprinkle generously with salt and pepper; toss to coat. Grill vegetables until tender and slightly charred, about 4 minutes for peppers and 7 minutes for remaining vegetables.
Transfer to cutting board.
Place chicken breasts in same large bowl. Turn to coat with any remaining oil in bowl.
Sprinkle chicken with salt and pepper. Grill chicken, covered, until cooked through, about 6 minutes per side.
Let stand 5 minutes.
Meanwhile, coarsely chop vegetables and transfer to another large bowl.
Add basil and vinegar and toss to coat. Season with salt and pepper. Slice chicken crosswise into 1/2-inch-thick slices; serve with ratatouille.