Smashburger | Any Entree $4! July 31, 2018 by Laurie 1 Comment July 31, 2018 This post may contain affiliate links, which means if you click on a link and purchase something, I may earn a small commission (at no additional cost to you.) See my disclosure policy HERE. Do you have a Smashburger nearby? Right now you can grab a coupon that will score you any entree for just $4! Easy way to save on lunch or dinner. Valid through 8/5. Go HERE to grab it! See more dining deals.