How to Order Vegan at Red Robin / Red Robin Goes Vegan. We continue our vegan options restaurant series today at Red Robin as we shoe you how to order vegan at Red Robin. I was actually surprised with the amount of vegan food at Red Robin. You can even order a Red Robin vegan burger. If you're not in mood for a vegan burger, there are other vegan options you can order at Red Robin as well. Red Robin has a few salad options that you can make vegan with a few changes, as well as some sides. Red Robin also offers bottomless fries, and their fries are vegan! Ordering vegan at Red Robin has never been easier. You can definitely go vegan at Red Robin and order vegan food with confidence.