In Japanese, “JK” is an abbreviation for “joshi kousei”, or high school girl, and “meshi” means “cooked rice” or “meal”, so it is only suitable that the anime focuses on 3 high school girls, Reina, Ryoka, and Ruriko, who have mastered the art of cooking simple, B-class dishes called JK meshi. Cooking enthusiasts or those who simply want to learn will want to tune in to this show, as the anime will show viewers how to cook dishes by showing common ingredients and simple, easy-to-learn steps.

[Source: Crunchyroll]