If you happen to be reading this on your phone from one of the many highways that go through this small town and The Corner Inn is open, get off on the nearest exit (they all lead downtown) and get to this restaurant! It is well loved by travelers and locals.
As you've probably already figured out, it's on the Corner of Sandusky and Walker streets. There is plenty of angled on-street parking.
The first thing you'll discover is hometown friendly service. Don't be afraid to ask questions. The next thing you'll discover is a varied menu. I've thought and thought about what to recommend but that's hard as everything I've had there is delicious. If I had to pick, the corned beef hash is in-house made and outstanding (note it can run out as it's a very popular dish) and the pulled pork is excellent. There is a hot lunch buffet every Sunday and absolutely everything on it is delicious.
So again, to the hangry travelers reading this who only know Upper Sandusky as where you turn off the 4 lane to get to "the lake." Come into this small town and get some excellent home-town cooking. You'll quickly become a regular.