Season 13, episode 2 had the chefs team up to open their own pop-up restaurant. The entire episode wasn’t vegan, however, each team was required to open a restaurant based on Los Angeles’ four major cuisines: Persian, Korean, Mexican, and vegan.
The vegan team unfortunately did not thrive, but it was largely due to the fact that one of the contestants, Phillip Frankland Lee, was incredibly unhelpful, and quite frankly, annoying.