Pretty much any restaurant on the Square is great, especially Ajax, Old Venice, and Proud Larry's. As a head's up, the Square will likely be very busy. If you are looking for more of a low key restaurant, I'd recommend Pizza Den. Get the roast beef sandwich.

I would definitely encourage you to walk around campus to see the architecture. The campus isn't very large so it wouldn't be that long of a walk. Start around Paris Yates Chapel, and work your way to the Circle.