Moms eat free deal at Tijuana Flats May 092013 Participating Tijuana Flats restaurants are offering an opportunity to treat the queen of the family to a free entrée. The free meal for moms on May 12 requires purchase of another entrée of equal or more value. The Mother’s Day deal is featured on the Tijuana Flats Facebook site. 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! Sorry, the comment form is closed at this time.