That Time I Got Reincarnated as a Slime: Gourmet Story - Peko and Rimuru's Cooking Book

This story takes place from Volume 3 of the Light Novel, after the Orc Lord arc.

Peko is a goblin who gave up being a warrior and dedicated himself to cooking to satisfy the hunger of others. With a unique skill focused on cooking, Peko will discover new types of food for Tempest. Thus begins the Tensura cooking Spinoff!