Here is a video I made a while ago of Yellow House hotel, which is a nice place outside of Oley, PA. We ate in what was actually the Hotel kitchen well over a hundred years ago.
The Yellow House Hotel has fine dining, but casual attire is acceptable.

The hotel actually has rooms for rent, so if you were in town for one of the local festivals or touring around the Oley country side, the Yellow House might fit the bill if you were looking for a cozy B&B type lodging for the night.