Not many options at Dane County Airport after security, unfortunately.
Of the choices for food, this has the widest selection.
Everything is sadly just overpriced airport food called a "Gastropub". Everything tasted like microwave reheated fare. Chicken was rubbery and over cooked, probably due to said microwave. Calamari was heavy on the breading.
Wine list are your supermarket cooler staples. Beer list is likewise gas station cooler staples.
Service is slow, but friendly.
Tip: there are some tables with power outlets on the long bench in the very front.
Warning: they close at 7:30pm, so eat early if you are planning on food after security.