If a Wendy's baked potato is "healthy", then I wanna know what "unhealthy" is!!!
The best airport cuisine I've found is when I've actually found a chain restaurant that has an airport location (e.g., Legal Seafood, Friday's, etc.).
Everything else falls into the "ballpark food" category. Except that the ballpark (unlike the airport) does enough volume to prevent the stuff from getting cold and stale...