This burger shop featured was really a Thai food stand in Fisherman's Village in Marina del Rey, but the set designer changed all the signs and menus to make it look like a burger place where high school kids hang out.
The flashbacks when Barnabus and Maxine are teenagers are the last scenes shot in the season. That way, David Arquette - who plays Barnabus - could shoot all his present-day scenes with his beard, and then shave off his beard to look like a teenager.