Red Robin Goes Vegan with the Impossible Burger / Vegan at Red Robin. Red Robin Restaurant just announced that it is serving the vegan Impossible Burger nationwide. The Impossible Burger is a vegan burger that looks and tastes like real meat. My friend Cooper joined me as we put the Impossible burger to the test. Cooper is not vegan, but wanted to give this vegan option at Red Robin a try. He was impressed with the Impossible Burger. Going vegan at Red Robin has never been easier. You can also check out the video on how to order vegan at Red Robin, where we go over the menu and try their traditional vegan burger.