Folks who suggest the upper valley are spot on. Hanover is out of the way, though, and sort of impossible, parking-wise. West Lebanon has chain places (chili’s, Applebees), but also 110 Grill, which is pretty good, and Ziggy’s pizza (lots of different things there other than pizza). White River Jct has wicked awesome bbq right off 89/91, and further into downtown Tuckerbox is very good, as is Big Fatty’s bbq. These places are all pretty kid-friendly and easy to access from the interstate. Going further north there isn’t a lot that’s easy to access from 89.