Dane County is a small airport, but has everything I look for in even the biggest of ones:
Over-priced last minute -and you have no other alternative- convenience stores? - check.
Place to get sandwiches/other food suitable to cary on to the plane? - check.
Since you've left all your liquids behind, and you didn't anticipatethe longest part of making it through security was going to be taking off your belt; a place to get a beer or three before boarding? check?
This is Dane County Regional Airport. Just like Madison. Its spaceous, not very busy, lots of great (fattening) food and amazing beer.
Just don't try to find a salad. I've never had a good one here. Get the fried cheese curds instead.
-1 star for not having free wifi.