Smashburger Coupon for Buy One Entree Get One Free 2 years ago 2 Comments Coupons, Restaurant Deals Smashburger has a great offer right now. Buy one Eentree get another one free with this printable coupon. Offer valid through 3/31/13. Find the Smashburger closest to you here. Facebook Prev Article Next Article You may also like Bisquick and Betty Crocker Cake Mix Just $.29 Each! (Walgreens) 9 months ago Panda Express: FREE Honey Sesame Chicken Breast Single Serving on 10/2 1 year ago Dole Fruit Smoothie Shakers Coupons + Walmart Scenario 2 years ago New Lipton Pure Leaf Iced Tea Printable Coupons = As Low As FREE 2 years ago TWO SavingStar Friday Freebies This Week! (Jiffy Corn Bread and Land O Lakes Cocoa) 2 months ago $1/1 Old Hearth Bagels Coupon 4 years ago Sandy P Thanks for the coupon, I have never tried this place… a must for this weekend!! Lindsay Ackerman Guess they need to update their restaurant finder; there are at least 3 in my city and the ZIP code search is telling me my closest is St. Louis.