Jerkass Has a Point: Yeah, you can understand Carl's frustration, but his boss gives fairly valid reasons he should stick with what he's good at on the night he knows an important critic is there.
Magnificent Bastard: Carl lets his 10 year old son try a relatively crappy beer, so he'll remember the taste in his teen years when peer pressure kicks in.
Memetic Mutation: The film gained a bizarre second life in 2015 after Filthy Frank turned his obsession with the movie into a Running Gag, such as insinuating that Jon Favreau is a "God" who taught him how to cook, naming his car "El Jefe" like the food truck, and generally appearing as a Freeze-Frame Bonus.
What an Idiot!: As Anthony Bourdain taught us all, it is almost required for a chef working in the US to know at least workplace Spanish, or to use the words of the Les Halles head chef that succeeded him: "Mexico is the best part of France." So how the Hell does Carl, a chef in LA no less, not know a lick of Spanish?
Seasonal Rot: The first series is usually rated the highest with noticeable declines in each series, although the second series finale is one of the best episodes altogether. The third is definitely the weakest with the shift from film to video tape and the extended subplot about the failing state of Gareth's marriage. Whether it's pure horror or just not quite as good is a matter of opinion.