Mileground in Morgantown, WV
Yesterday's is located in a new shopping center, Northpointe Plaza, about a quarter-to-half mile from Back Bay (heading away from Morgantown). It opened last fall, and I've heard that they are still having problems hiring adequate help so going there on a weekend evening may mean a long wait. We passed it around 9pm last Saturday and it was very busy.
A note, just a couple buildings from Back Bay is a wonderful Indian Restaurant (I believe it's called Cafe of India). If you enjoy that kind of food, definitely try it. :)