Welcome! Taco Diner sits on the corner of John Carpenter Freeway and MacArthur Boulevard in Las Colinas. We are a very popular lunch spot during the week and have happy hour specials, including $5 Mambos and Margaritas, Thursdays through Saturdays from 4pm-close with music by DJ Ryder Thursdays and Fridays 5pm-close. As the largest Taco Diner location, our restaurant features a private room that holds groups up to 75 people.