This page contains trivia for "Casa Bonita". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
Trey Parker mentioned in the DVD commentaries that this was one of his all-time favorite episodes.
Casa Bonita is a real world restaurant in Denver, Colorado. Unusually, the restaurant allowed their unaltered name to be used on South Park.
Parts of this episode may parody the Fallout gaming series (which in turn takes several references from the film "A Boy and His Dog"), such as the fact that Butters finds a stray dog and befriends it, a reference to Dogmeat, and the cannibals.
Eric Stough, director of animation and producer, was credited as "Eric Leopold Stotch", referring how Butters is based on Eric Stough.
Butters makes reference to this episode later in "AWESOM-O".