I haven't done a lot of organized rides, but most of them had terrible food for the rest stops. I am allergic to peanuts, so the one that had pbj, was a big fail for me. I like whole wheat bagels and almond butter, salty baked chips, and real food. I bring my own bars and lots of Shot Blocks to get me through, and refills of SKratch for my bottles. Hummus and crackers and fruit would be good, too.
2015 Trek Silque SSL
Specialized Oura
2011 Guru Praemio
Specialized Oura
2017 Specialized Ariel Sport