That's really cool. I remember going through that with my boys. Neither one was very sure of what to do with it, but they didn't really need much caoxing to eat it.
To answer your question on the raw / homecooking mixture, I personally don't think it would be a major issue feeding one or the other once a day for a couple of weeks. I would just be a little nervous taking her off of kibble suddenly because she'd probably end up with an upset tummy.