D.K.
Lou Mitchell's is a breakfast must in Chicago. It is very close to Union Station on Jackson. It has been serving breakfast in Chicago since the 1920s. I am pretty sure you won't get kale there, but the breakfast skillets with eggs, potatoes and a meat are fantastic. You will be offered a donut hole when you get there. I would recommend taking one, they are divine, but obviously you are welcome to decline as well.