Strongest Food Vendor is a Manga/Manhwa/Manhua in (English/Raw) language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The imperial capital has launched an online celebrity check-in full self-service gourmet shop that not only sells astronomically priced meals but also allows customers to stand on their own platforms and clean up after themselves. Despite this, the business is still booming, and the queue is long enough to circle the globe twice! Is it the boss's twisted humanity or the foodies' loss of dignity?