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 New Printable Visine Coupon = Free at Target or Walmart 3 years ago Hot Coupons: Buy One Get One Hefty Paper Products, Planters and More 4 years ago Buy a Dozen Doughnuts, Get a Dozen Free at Krispy Kreme! Print Your Coupon Now! 1 year ago 4 Different Canned Tomatoes Printable Coupons 2 years ago FOUR New Frozen Pizza Coupons | Freschetta, Red Baron, and Tony’s! 7 months ago $1/1 Idahoan Potatoes 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.