BEST: Blue Mesa at DFW (I get stuck there often enough, so I really appreciate their food), Legals and a few others at DCA, some fabulous sandwich shop in Philadelphia (I used to take one of these home for my husband when flying thru!), and the restaurant across from the AA Ambassador's club at Chicago's O'hare. Those nice folks actually looked me up in the passenger waiting area when my food was ready... and gave me my drink while I was waiting! Actually, ORD does have some other decent restaurants.
WORSE: Islip on LI ... OMG. Don't even get me started. Best thing on the menu is nachos... Stale nachos with some stale cheese and a few jalapenos. The view is nice there, tho.... looking out over the runway.
SDF in Louisville. Nice airport, Nice servers, Nice lounge,...but BAD food at the one and only REAL restaurant.
JP