When at the diner, there is talk of ordering Monte Cristo sandwiches; in Gilmore girls., which also stars Lauren Graham, there is a running gag about Monte Cristo sandwiches at Luke's Diner.
At the hotel when Zeek and Camille go on ahead to Grandma Braverman's house. The split pea place mentioned by Joel is Pea Soup Andersen's a famous and long standing road stop in Buellton CA known for its split pea soup and for generations has been a favorite stop on long drives from SF area to the LA area. There are 2 now but the one in Buellton is the one referenced here.
Although credited, Joy Bryant (Jasmine Trussell) does not appear in this episode.