I usually use ground up pork rinds. In Toronto you should be able to find pork rinds (at Loblaws (Superstore) they carry Pork Puffs - no name brand, and Safeway, 7-11, etc. usually carries Old Dutch Bacon Puffs, which are the same thing).

I just made up a big batch of meatballs and froze a bunch of them. My family loves Swedish meatballs!!!