Many vegans dream of starting a food truck, or wonder why there isn’t a vegan food truck on every corner. This is an interesting article. While not about vegetarian food trucks, it is worth reading if food trucks interest you. See: https://getpocket.com/explore/item/the-rickety-economics-of-food-trucks?utm_source=pocket-newtab
Also of interest would be: Marketing Food From A Vegan Food Truck https://www.vrg.org/blog/2021/07/26/marketing-food-from-a-vegan-food-truck/