Another option could be to get the pups and cut them in half, if you're not squeamish. I had to do that for a little while for my corn. I usually lopped the heads off and fed each half at different feeding times. Though someone can correct me if this is incorrect or bad to do!
Do you do that with f/t or live? She is eating live right now and I don't think I could do that with a live rat lol.