Grilled Panzanella Salad Recipe

Name: Grilled Panzanella Salad Recipe
Ingredients: 2 large very ripe tomatoes (see note), cut into 1-inch chunks; Kosher salt; 1 medium zucchini, split in half lengthwise; 2 bell peppers, split in half; 1 red onions, cut into 3/4-inch slices, each slice held together with 2 wooden skewers; 1 (1-pound) loaf day-old Italian bread, sliced into 1-inch thick slices; 1/2 cup extra-virgin olive oil, divided; Freshly ground black pepper; 2 tablespoons balsamic vinegar; 2 tablespoons chopped parsley