I don't grind bones either, I feed them whole.

For their mush meal... I take a whole bunch of veggies and some organ meats and put it all in the food processor. I make a huge batch at once then I pour it into muffin tins and freeze them. Once frozen I remove them from the tins and put them in a container in the freezer. So when my dogs get fed raw I just defrost a veggie "muffin" and they have that for breakfast, and then they get their bones for supper.