Chicago - Meeting my parents at MDW for 4 hour layover, what to do?

I purposely booked my parents a 4 hour layover this sunday afternoon at MDW. I have a car and will drive out there to meet them. I figure it will probably take them 20 minutes to the curb and they probably want to be back 70 minutes before departure so that gives me exactly 2.5 hours to work with.

I was planning on just going to Giordano's at 63rd and Cicero. Figured it was good food and next door to the airport. Just figured I would check here for any other ideas. I'd be interested in good eats, someplace we can watch football, or something outdoorsy as the weather is supposed to be nice. Any ideas.

Exact layover time is 2:40pm-6:40pm.

Not football related but some people like this kind of stuff, there is a Frank Lloyd Wright house not too far. http://www.gowright.org/

If food is a priority, maybe consider going to the Heart of Italy or Chinatown neighborhoods. ~15 minutes away, but probably beats Giordano's.