This is pretty obvious to explain: what foods bring you comfort? What do you eat when you need a pick-me-up? What foods are your favorite for when the world is exploding all around you and you just need to nope the fuck out and stuff your face in gleeful ignorance? What foods bring you joy?
You can even discuss what types of foods elicit specific sense memories that you consider pleasant.
Bonus topic: What foods do you avoid when you’re not feeling emotionally secure because you know it’s gonna mean having a bad time after the indulgence?