I stumbled across this place several days ago while on the hunt for a replacement to Roberto's since their prices have almost doubled as of recently, I'm so glad i found Don Tortaco's.
First off when they say 'beef' on anything whether its the nachos, tortas or chimi's they really do mean it, You wont find ground beef in any of their food as they use authentic shredded beef which is well seasoned and cooked amazingly.
I ordered the Super Nachos - Beef and a Beef Chimichanga, To me at-least i felt the Chimi could've had a bit more filling as it felt soggy and empty upon first cutting into it however the Nachos were delicious i would even say they're right up there with the best I've had in Las Vegas thus far.
Food was amazing but i really enjoyed the drinks on tap and the brand of Horchata they have tastes pretty authentic despite coming from a fountain unlike the 7/11 one, They also have a variety of flavors from Pina Colada to Coconut and even Guava i was shocked.
Hopefully they'll work on stuffing their Chimichangas a bit more but other than that they have won a loyal customer!