1. place sausage and onion in a large, greased sauce pan. Brown thoroughly. Some people will tell you to drain the fat after browning. Don't. Venison is lean enough already and if you're eating sloppy joes you're not on a diet.
2. add other ingredients. Reduce to simmer and cover. Simmer for 30 minutes, stirring occasionally.
3. uncover pan to allow sloppy joes to thicken
4. while waiting for sloppy joes to thicken, place halved and buttered buns in the oven to toast
5. load buns with sloppy joes
6. eat
An optional note: chopped bell peppers could also be added, according to your preference.