[SAJ]

Typical ratio would be 2 slices per pound of ground beef. If you add quite a bit of bacon and pepperoni (well chopped!) and whatnot else, per illiac's recipe above, you might want to use 3.

Best policy here is to use 2 slices, then take 1/3 of the loaf and see if it is coherent, stands up w/o crumbling or stripping. If it is, you're good to go; if not, add another slice or half-slice and remix and try it again.

[illiac]

Thanks - great advice!