Tijuana Flats BOGO entrée March 21 Mar 212013 If you're new here, you may want to subscribe to our daily email updates so you won't miss a deal. Thanks for visiting!Purchase an entrée at a Tijuana Flats restaurant and another entrée is free. The 2-for-1 offer featured on Facebook is valid March 21. A coupon for the deal is featured on the Tijuana Flats Facebook page. Comments are closed.