I went to the Lou Malnati's in Schaumburg when I was visiting Chicago. It was so good that I returned on my way back to the airport. The sauce and abundent cheeseis delicious but the highlight is most definitely the absurdly good butter crust. In my opinion Lou Malnati's puts similar joints, like Uno, to shame.
Lou Malnati's - Chicago, IL is recommended by jaredavs