Passing through Round Rock Texas and wanting to round out our taco tour of Austin and environs brought us to this Torchy's Tacos location. The menu says "Damn Good Tacos" and for sure that's what we got. There are 2 vegetarian options, helpfully labeled with big, obvious, green "V's" on the menu, including an Avocado taco and the "Mofaux." (Though I'm sure they can modify any of the other tacos with the Beyond Beef they use in the Mofaux if you want.)
I had the Mafaux, both because it was fun to say, but also because it had all the southwestern flavors I wanted, plus I had them add cheese to it as, why not!?. It was delicious, hearty, and I wanted to eat a million more of them.
Their default tortilla is flour, which was also fantastic, but they also offer corn tortilla as a choice in case that's your preference or you're gluten-free.
If I found myself in Texas again...Torchy's would definitely be a stop I'd make to get the Mofaux again.