I've searched your boards and whereas I've found discussion about places open all night, I'm not seeing any strong recommendations for places with truly good food.
I'm flying in to Midway on a Wednesday with a best case scenario landing time of 12:30am.
My friend will be picking me up so we'll have a car. Is there a gem out there you can recommend? A steakhouse, a fantastic breakfast joint, a greek place, a deli or whatever as long as it has great food and possibly "atmosphere" as well. Doesn't every big city have a few late night essentials?