It has been well established that paleo meatballs do not NEED a binder like bread or breadcrumbs to hold their shape. Recipes for grain free and dairy free meatballs can be found and most of them taste really good. But they still lack a certain authenticity, a softness, a "meatball-iness." Or rather, they are heavy on the "meat" but come up short on the "ball-iness"! (There is a joke in there somewhere, I just haven't found it yet...)