On the Border: Free Queso with Adult Entree Purchase! This post may contain affiliate links. Please see my full disclosure policy for details. February 26, 2015 26 Feb Pin0Share0TweetGoogle+0shares When you join the On the Border EClub, you will get a coupon valid for a FREE bowl of queso, with any adult purchase! This is one of our favorite places to head as a family (for our one weekly meal out). So this coupon will work PERFECTLY for us!!!