This idea may be a little "out there," but if you're using green papayas, the flesh can be a subsitute for meat in chili.
Make chili as you normally would but instead of meat, use shredded green papaya.
I first tried papaya chili at a law school chili cookoff. It was unusual and tasty. I have a makeshift recipe from the cook at home and can post it when I get home from work...