Dads get in free these Father's Day events in the Dallas-Fort Worth area:Dads eat free at Mixed-Up BurgersMixed-Up will grill every dad a free one-third-pound burger with a choice of three “mix-ins” with the purchase of fries and a drink. Dining guy Bud Kennedy says “In spirit, Mixed-Up is between Rodeo Goat’s creativity and Fred’scomfort.” Good to know: This is a dine-in only deal. When: 11 a.m. to 11 p.m., Sunday, June 15, 2014 Where: 510 E. Avenue K (Brown Boulevard) at Texas 360, Grand Prairie 972-606-6700 or 3116 S. Great Southwest Parkway, Grand Prairie, 972-595-5420 Info: http://www.mixedupburgers.com/ Cost: Dad's burger is free with purchase of fries and a drink• Dads get a free meal at Pollo TropicalOn Sunday, June 15, customers who text “DAD” to 52198 will get a code to show at the register to receive a Buy 1 get 1 Free 1/4 chicken meal deal. Good to know: Pollo Tropical fans are also encouraged to share bits of advice from their fathers with the hashtag #DadWisdom via Pollo Tropical’s Twitter and Facebook pages. When: 10:30 a.m. to Midnight, Sunday, June 15 Where: Pollo Tropical, 5290 Belt Line Road, Addison, TX 75254 Info: 972-770-3540, http://pollotropical.com/ Cost: Buy 1 get 1 Free 1/4 chicken meal• Dads get in free at Legoland Discovery CenterA family that builds together, stays together, right? Take the whole family to Legoland and Dad gets in free. Dad gets in free with purchase of full-price ticket. Good to know: Offer is only available at the door; not available for purchase online. When: 11 a.m. to 6 p.m., Sunday, June 15 (Last admission is two hours prior to closing.) Where: LEGOLAND Discovery Center Dallas/Fort Worth at Grapevine Mills Mall, 3000 Grapevine Mills Parkway, Grapevine, Texas 76051 Info: 877-818-1677; www.LEGOLANDDiscoveryCenter.com/dallasfw Cost: Dad gets in free with purchase of full-price ticket. $18, for ages 3 and older; Children 2 and younger are free.• Dads get in free at Frontiers of Flight MuseumExplore the history and progress of aviation with Dad! Good to know: From 3 p.m. to 6 p.m. on Sunday, June 14, "A Father's Table" a separate event that includes dad cooking recipes and celebrity tasters. Call 469-524-8818 for ticket information. When: 1 p.m. to 5 p.m., Sunday, June 15 Where: Frontiers Of Flight Museum, 6911 Lemmon Ave. Dallas, TX 75209 Info: 214-350-3600; http://www.flightmuseum.com/event/fathers-day-special/ Cost: Dads get in free with at least one paid admission or membership. $8, adults; $6, seniors, 65+; $5, children, 3-17; Children younger than 3 are free.• Dad reigns for free at Medieval TimesTake your King to a medieval adventure where you'll see live jousting, eat a four-course dinner with your hands and have a jolly good time. Valid for all shows thru June 15, 2014. Dad is Free when accompanied by one full-priced adult admission. Limit 1 free Dad per full price-adult. Must mention or enter code FDWEB at time of purchase. Good to know: Add the Father's Day package for just $25, which includes a photo of dad, commemmorative scroll and a 25 oz beer stein with choice of draft beer or soda. When: Valid for shows June 3-June 15, 2014 Where: Medieval Times, 2021 N. Stemmons, Dallas, Texas 75207 Info: http://www.medievaltimes.com/dallas/specialoffers/fathers-day.aspx Cost: Dads are free with purchase of full-price ticket. Adults, $60.95 per person (+tax & processing fee); Children, 12 and younger, $36.95 per person (+tax & processing fee). Children 3 and younger are free as long as they sit on an adult's lap and eat from their plate. Gratuities are not included.Check out more Father’s Day dining ideas from Bud Kennedy here.