Heat greased barbecue to medium heat. Grill peameal bacon slices 2 to 3 min. on each side or until heated through and grill marked on both sides. Top with barbecue sauce as directed. Cook vegetables in pan on a side burner, or in a grill basket, until crisp-tender. Meanwhile, toast buns, cut sides down, on barbecue 1 min. Spread buns with Miracle Whip mixture, then fill as directed.