I miss Conway's Red Top.
It wasn't chain (I think they had at most 5 locations), and it wasn't in Texas (it was in Colorado Springs) but man... they made the best burgers and malts ever. They had one a mere 3 blocks from my Dad's house. And the burgers were the size of dinner plates. I went to High School with the presumptive "heir" to the Conway family business, and it was clear he had no inclination whatsoever to take it over... but I suppose it wasn't meant to be. Conway's Red Top
got into money trouble in the recession and ceased to exist