Taco Bueno Mexi Dips and Chips with a frozen lemonade was my dashboard dining choice back in the day. Still miss it!
Just for fun, a few weeks back, had to stop at the Taco Bueno near 635 and Monfort. Man, that area is still depressing. Check out what's being done to Valley View if you haven't looked it up recently. Already starting the demolition.
I've heard about Taco Delite from friends back home. Never been to one but they all say it's awesome.
Surprised you never found your way to one in East Plano or Spring Creek/Coit. Hell, there was one at Preston and Lebanon when you were at BridgeSpan.