Preheat oven to 350.
Spray the bottom of a 13x9 glass pan.
Brown the ground beef (or have your chicken shredded), then mix the can of enchilada sauce, black beans, and meat together.
Next, you will layer (like a lasagna), tortillas, meat mixture, cheese.
Repeat until pan is nearly full.
Top with cheese and cover with foil.
Bake for 25 - 30 minutes.
Garnish with sour cream, avocado, guac, pico, etc.