The recent SFWA Cookbook has been getting a lot of attention, but it was far from the first science-fiction or fantasy themed cookbook. Here's another, that came out at the end of August.
Apocalypse Weird: The Last Meal is the latest brainchild from the people bringing out a shared-worlds series of books called Apocalypse Weird that currently stands at about a dozen volumes. Short version: All The Disasters Happen At Once. (Well, sort of; the over-arcing storyline for the project, explained at somewhat greater length here, isn't that simple.)
The Last Meal looks to provide not only a decent selection of ways to eat well (without eating your neighbors) in the wake of an apocalypse, but also includes some poetry, short fiction, and new clues to the AW master plan. From the sample pages I read, I was especially intrigued by the piece on making Mesquite Coffee; there are zillions of mesquite trees locally, with their seed pods usually just ending up as ground trash, so I may give this an actual tryout. (The Mesquite Coffee piece has also been published separately as a blog post on the AW website.)