Keene, NH Breakfast & Lunch
Hiya AGM. It's kind of fancy but still casual. I meet friends for lunch at Luca's. It's right in the downtown area. You'll need to park in one of the city lots. http://lucascafe.com/ The lunch menu is reasonable. You can have pizza or sandwiches.
If you want really casual and have the time, Humble Kitchen food truck in Brattleboro VT has bahn mi sandwiches and cold Asian noodle salads. They park in the Harmony parking lot and have a few tables.