In most parts of Texas, enchiladas are rolled tortillas stuffed with a filling and covered in sauce. But often in West Texas (and also New Mexico) the filling and sauce are instead layered between flat tortillas. They look a bit different, but the end taste is the same, not to mention stacked enchiladas are a heck of a lot easier to make.
Another feature of stacked enchiladas is the inclusion of a fried egg on top. I don't know how this tradition came about, but it's a brilliant addition. When the yolk mixes with the sauce, its creamy transformation takes the sauce from merely delicious to truly decadent.
I was born and raised a rolled-enchilada girl, but I can appreciate a plate of stacked ones, especially those made with an ancho chile sauce. And if I squint, I can see in the stack the rugged terrain of West Texas, with the egg standing in for clouds and the sun. It's West Texas on a plate.