When making meat loaf, what do you add for filler?

United States
@lilybug (21187)
August 1, 2008 12:39pm CST
I made some meat loaf for dinner last night and I was debating over weather or not to use oatmeal or bread crumbs for the filler. I started wondering what myLotters used for the filler in their meat loaf. What do you use? Bread, bread crumbs, crackers, oatmeal?