You probably could, but I dunno. Never tried that. I do know that you can buy pre-cooked sausage crumbles in the grocery store refrigerator case. (I forget how big the packages are, but I remember thinking that each bag is probably roughly equivalent to a pound of raw sausage, minus grease drainage.) No need to bother with browning your bulk sausage, if you buy the vacuum packed, precooked stuff. The downside is that the pre-browned sausage doesn't have any excess grease, which is simply awesome for use in other recipes, or if this stuffing starts to dry out (which I wouldn't worry about, if I was using a crock pot.) Prep only takes about half an hour. The oven or crock pot part, you can do at your destination. I prefer oven, because I like the crispy bits of dressing on top. But, in a crock pot, you basically would end up with stuffing -- moist all over. OR, if you're into win-win, you could do the oven part at home, transfer to a crock pot, then take the finished dish to your parents' house and plug in to warm until it's time to eat. And, regardless of when or how you make it, I would make the rice a tad on the wet side, so the finished stuffing doesn't end up dry.