I'm driving from the DC area to Winchester/Tullahoma, TN over the 4th of July. I'll be on I-81, I-40 and then I-75. Any recommendations for a lunch place along I-81 that aren't the usual McD/Wendys etc? I'll be leaving around 0600 so lunch time might be around Roanoke or thereabouts. I don't want to go too far off the main road, however, and I'll have my dog as co-pilot.