I wouldn't normally consider Quizno's to be comfort food, but there's something comforting about having a sandwich here before boarding my flight home to Atlanta. There are lots of other options for food on this concourse and I always bypass them all for a sub.
It's unfortunate that you pay a premium for eating in the airport. A regular combo costs more than $10. Sometimes I guess it's worth it, though. Especially when it makes you feel sooo good inside.