Keiner?

Sagt 'system catering' wirklich "no one on earth"? Siehe auch: Systemrestaurant - #2

System catering is a method of standardized food preparation which can be duplicated at all the branches of a catering chain such as KFC, Little Chef or McDonald's. This term is not, however, widely used in the chain restaurant industry, which typically refers to its style of operations simply as "food service". It is likely that the term "system catering" is a loose translation of the German word "Systemgastronomie" used to describe this business in German

https://en.wikipedia.org/wiki/System_catering