Chef's name is revealed to be Jerome McElroy.
This episode marks the last appearance of Mr. Twig.
In the flashback showing Elton John's encounter with Chef, Elton is depicted as a piano player in a bar. This would be historically accurate as Elton John was a pub pianist from 1962-1969.
This episode was a plug for the album Chef Aid: The South Park Album which featured many of the songs featured in this episode. It was released in 1998.