I don't eat much meat these days (and virtually no red meat at all anymore), but after my surgery, I noticed beef in particular always gave me increased frequency - not watery stools just a lot of stool, if that makes sense, as well as increased butt burn. But it wasn't terrible, more like a mild annoyance. I've never really eaten much meat anyway, so it could just be that my system wasn't quite used to it.
BTW, my choice to limit meat in my diet actually has nothing to do with the pouch. Just a personal preference.