We have tried alot of ways..

1. Back strap steaks...

2. Sausage

3.Italian Venison ..this way is awesome and can turn any tough roast into a 5 star dinner..I wrap this tender venison meat like a burrito with chopped onions, canned mushrooms, sour cream and shredded mozerolo cheese
RECIPE...
You simply dump a jar of Greek peppers with a roast in a slow cooker for 9 hours..The vinegar in the peppers tenderizes the daylights out of any roast making it melt in your mouth..Shred meat ..take out peppers if you like and cook for 15 more minutes and serve..