Joanne and Grant let have Andrew Graham have one meal free before handing him over to police custody in episode 3x08 "Archive".
Alice gives a vampire some of her blood to get some information on the creature hunting her in episode 3x01 "The Tales of the Seven Keys".
Source: midnightscribe99 — Tumblr
Vala is working at a diner when the place is robbed by thugs and she beats them up in episode 10x08 "Memento Mori".
Cafe where Beverly meets with Trevor Grant to talk about her secret plan in episode 4x08 "The Ex-Files".
Lara Jean runs to the cafe to escape Peter but he tracks her down there to confront her about the letter.
Diego visits a cafe and asks if Kit Nelson has been in to order cherry pie in episode 1x03 "Kit Nelson".