McCormick & Schmick's at Rush & Chestnut has their
mucho-cheap happy hour right around then -
here's a link to the menu & hours.
I'm not sure where you stand on the whole
M Burger topic, but there's one on Huron, a half block east of Michigan.
There's a Whole Foods at Huron & Dearborn, if you're in the mood for a salad bar, hit-or-miss hot bar, or a couple slices of their pizza.
I'm sure there's much cooler stuff around there, but jeez, my brain's still in long weekend mode...I can't think of anything else.
Edited to add: How could I forget - there's
the new Chick-fil-a at the corner of Chicago & Wabash, a stone's throw from the Chicago red line stop.