Places I found food on OSH trips
KFOD Fort Dodge Regional Airport, Fort Dodge, Iowa, USA - Found by chance. I was having plane trouble looked down to see big long and wide runways. Landed and was greeted by friendly EAA folks who had a spread. Basic dogs, chips and drink but a nice surprise.
KYKN Chan Gurney Municipal Airport, Yankton, South Dakota, USA - Stop here every year. The FBO changed hands a few years back I beleave but still a nice stop. Same basic spread with great folks, huge runway nice AC building. If WX turns bad you can camp in front of the building or sleep on the floor in the AC. They have great memories last year my wife walks in says a few words and 2 of them remembered her and that she is ATC at LAX. They has talked to her once 2 years prior. Any way they make you feel welcome. I do not think it is EAA folks.
KLXT Lee's Summit Municipal Airport, Lee's Summit, Missouri, USA - Stopped here a few times. Sometimes they had food sometimes not. Not sure if EAA folks.
Three places I found great folks and food. If they are on your way call up and see if they are putting out a spread again this year.
Enjoy your trip. Unfortunately I cannot make it this year