Whisk the mayonnaise with the mustard, oil, lemon juice, lemon zest. garlic, salt and pepper. Pour the marinade over the asparagus (use a large plate) and turn to coat. Let stand for 30 minutes. Meanwhile, heat your grill to medium-high (we use a gas grill which takes 15 minutes to heat up). Grill the asparagus, turning occasionally, until the spears are tender and lightly blistered in spots, about 6 minutes.Serve the asparagus hot or at room temperature.
Recipe by My Lilikoi Kitchen at https://www.mylilikoikitchen.com/2020/06/14/mustard-mayonnaise-glazed-asparagus/