Tijuana Flats: Buy One Entree Get One Free – 8/11 Only! This post may contain affiliate links. Please see the full disclosure policy here. Posted on August 10, 2011 Written by Mary 3 Comments Yay I LOVE this coupon!! Click the pic above to print this Tijuana Buy One Entree Get One FREE Coupon valid tomorrow, August 11th only! Now I’m torn-should I go to Tijuana Flats or head to Crispers for Friends Eat Free??