No matter what time of day or what you're craving, these restaurants have something for you 24 hours a day.
I have spent many-a late night at Tempo Cafe (mostly when I was a young thing) and their burgers, eggs or hash browns taste amazing, especially when paired with the 4am people watching.
Almost nothing tastes better than Mexican food at 3am, except if it's El Presidente Mexican food.
Nothing tastes better at 3am than a trip to the Golden Nugget...any of 'em.
Fat French fries (the only kind I like), tomato soup, burgers, Clarke's is the most comforting of comfort foods, it's open 24 hours and it's just damn delicious.
Eggsperience isn't my favorite breakfast place in the city, but I do like that it's open 24 hours...ya know, just in case.
Elly's is one of my favorite breakfasts in Chicago with equally greasy and healthy options. A b-fast slam dunk.