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 *HOT* $2/2 Tazo Tea Coupon = Possibly Free 4 years ago New Wholly Guac Product Coupon 5 years ago Printable Coupons: End of the Month Printing Reminder 2 years ago TARGET: Schick Hydro Silk Disposables Only $4.99! 4 months ago Kraft First Take Printable Coupon + Walmart Scenario 2 years ago Gerber Lil Entrees Coupon | Pay $0.78 at Walmart 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.