Creating fictional worlds also means figuring out how people manage to stay alive in that setting (or don't) - and that means food. However once characters start cooking, eating, and complaining about cooking that means you have to think about everything from economics to culture.
This book is a helpful series of 50 questions, as well as follow-up exercises and more, to help you think about food and cuisine in your setting. From economics to delivery, religious significance to medical benefits, let's talk food, culture, and more!