[Photograph: Nick Kindelsperger]

Free burger alert! To celebrate its two year anniversary today, M Burger is giving away a free burger with any purchase. The special is available at all M Burger locations and runs all day long. As for what you should purcahse to get the complimentary burger, you really can't go wrong with the a shake. Oh, and even though St. Patrick's Day and all its chaos has passed, the Minty Leprechaun is still available.

M Burger

Multiple Locations
mburgerchicago.com