Ingredients 1 pound refrigerated fresh pizza dough 1 red bell pepper, seeded and quartered 1 (4-ounce) zucchini, cut into 1/4-inch-thick diagonal slices 1 (4-ounce) yellow squash, cut into 1/4-inch-thick diagonal slices 1 small red onion (about 7 ounces), cut into 12 wedges 2 tablespoons olive oil, divided Cooking spray 1 tablespoon yellow cornmeal 1/2 cup […]