Good Food Fundraisers?

I'm the secretary for our club at school, and I am looking for some good fundraising that we can do with food. This is just for one day. I was thinking about doing Krispy Kremes fundraising thing, but I need some other ideas. Any suggestions are welcome though I would prefer we didn't have to do any cooking because as much as I'd love to, we don't have time. Also, we are selling to high schoolers. Thank you in advance :D