Tucked away on a quiet street southeast of downtown Phoenix, the original Carolina's would appear to be off the beaten path. But step through the front door and you'll be surprised at how bustling this place is; there's usually a line at most times of the day. (To be fair, the packed parking lot sort of gives it away.) Indeed, folks come here from well beyond the barrio to get their Mexican food fix, and not just because it's affordable. It's the killer tortillas that keep them coming back — tortillas that truly have no match in this vast Valley of Mexican restaurants. Why's that? Well, the easiest way to find out is just to taste them. They're remarkably thin and light, with just enough stretchiness to contain a burro's worth of fillings, and a moist, soft texture that makes them equally good unadorned. The fact that Carolina's tortillas are so popular is somewhat of a self-perpetuating success, since the high demand means the folks behind the counter are constantly making fresh ones. And once you get a bite of a hot one off the griddle, we're sure you'll be a fan.