Gotta give me deets, my dude. What's this "tortilla" thing made of? Flour? Corn? Something else? How thin is thin? What kind of fillings are the norm?

[Knowing the outside though...that helps. He already knew he wanted sour cream and ground...something. Meat? Pork? Fish? Chicken??? And cheese. Some vegetables probably, give it a fresh zest and clean crunch. That mouth feel would be excellent.

But this "tortilla" thing? He needs more information.]

The more info you give me, the closer I can get to this dream of yours.