I don't fry the trimmings or even cook them, I just feed them to the dogs raw. They do very well on the scraps. If you have a dog that needs to put on some weight just add some of the fat to the dog's food when you feed them. I also use the old cooking oil and pour it over the dog's food for added calories, especially when it is cold outside.
tmatt.. have you ever had any problems with worms from the raw meat?... i stopped feeding mine raw meat after several guys started seein dogs go downhill after feeding them