To celebrate their 8th year since first opening on Huron Street, they’re giving away one free single cheeseburger with any purchase (yes, an order of fries count) on Wednesday, March 21 at all of their locations. One per person, in-store only. Not valid with any other offer. PLUS: One lucky diner in Chicagoland will find their burger wrapped in a single golden ticket. The winner will win M Burger for an entire year! Restrictions apply.