Standard curry uses potatoes, onions, and carrots. You can put in whatever you like, but any kind tastes best! Follow-up question: I never eat onions and carrots. I hesitate to answer: You don’t have to eat them. You can stew them in a separate container and then throw them away when it comes out of the pot. However, curry is easy to stick to the pot, so you need to turn the pot frequently. It's not easy to get the bottom of the pot stuck.