Grill
scallions over direct heat, lightly brushing them with some of the glaze and turning frequently so the glaze doesn't burn, until tender - crisp and with a few char marks, 2 to 3 minutes total.
Grill zucchini and
scallions over direct heat, turning occasionally, until tender and lightly charred, 8 — 10 minutes.
Grill
scallions over direct heat, lightly brushing them with some of the glaze and turning frequently so the glaze doesn't burn, until tender - crisp and with a few char marks, 2 to 3 minutes total.