I am guessing that since they are there such a short time they are not required to feed them which is pretty standard. I would recommend the getting up earlier or maybe going with fruit and cereral bars something easy to handle she can do on the run. I don't think a bagged lunch is good either as the other kids will see it and want something too. Does that make sense? I have 5 kids so I have heard all this before and experienced the give/take/push/pull with schools and with kids. Takes a while to work out kinks in their habits or routines.
Does this help?