Saucy Chicken Enchilada Casserole

Name: Saucy Chicken Enchilada Casserole
Cook time: 1 h
Total time: 1 h
Cuisine: American, Mexican
Ingredients: 2 pounds raw chicken breast (OR 4 cups of shredded chicken); 2 tablespoons olive oil; 3 cups red enchilada sauce; 15 ounces black beans ( drained and rinsed); 2 4.5-ounce cans diced green chiles; 12 corn tortillas; 2 cups shredded cheddar cheese; 4 tablespoons butter; 4 tablespoons flour; 3 cups chicken broth (or beef broth, or vegetable broth); 2 tablespoons chili powder; 1 teaspoon onion powder; 1 teaspoon garlic powder; 1 teaspoon cumin; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 2 1/2 tablespoons tomato paste; 2 teaspoons apple cider vinegar