Good chicago restaurants?

My dad is coming to visit me in chicago, and I am a student there, so I know of some places to go for dinner, but most of the places I know are little mom and pop amazing quick eating kind of restaurants and he wants to take me out to a nice dinner, and due to my budget it's not necessarily like my friends and i are out exploring the local restaurants. We usually go to the Fireplace Inn, but I wanted to mix it up a little bit. What are some good places I could take him (that aren't chain restaurants) but that will be fun to take him to?