If you don' t want to add fat the Sausage maker in Buffalo NY. sell this stuff called RP Lean or (fat replacer) I think its some kind of oatmeal powder you add this and some water its not bad at all. Also soy protein can be used. I have reciepes for sausage but they all call for Either pork or beef fat. I have posted the reciepies before . maybe try a search if not I can post them again.