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.
If you look carefully when the boys are looking in Chef's memory album with Chef, a picture of Steve Urkel is seen for a brief second.