Yes I have the same troubles as Brat, now we keep the cat food in the laundry room with a door latch across so the dogs cannot get at it, friends of mine cut a tiny hole in the bottom of the bathroom door so that cats can get in but not the dogs,
I cannot remember if cat food was bad for dogs or dog food bad for cats
Hope your dog is feeling better, is she lethargic? Eating/drinking, normal temp? I'd maybe wait awhile and then if you are really worried about her, call the VEC and see what they say, sometimes they'll give you advice over the phone if you tell them everything that is going on and what you have already done, keep us posted
(I'd) go easy on the rice, this can have the affect you want but - go to the other extreme, hold back on everything for awhile and then start again gradually but keep her hydrated, does she like ice cubes?