Creating the Beef Enchilada Casserole is straightforward. Follow these steps for a deliciously layered dish:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Cook the Beef: In a large skillet over medium heat, brown the ground beef with chopped onion and minced garlic until cooked through.
3. Add Seasoning and Sauce: Stir in the enchilada sauce, black beans, corn, cumin, chili powder, salt, and pepper. Cook for an additional 5 minutes.
4. Layer the Casserole: In a greased 9×13-inch baking dish, spread a thin layer of the beef mixture on the bottom. Place five corn tortillas on top.
5. Add Cheese: Sprinkle with half the shredded cheese.
6. Repeat Layers: Add another layer of the beef mixture on top of the cheese and place five more tortillas over it. Top this with the remaining beef mixture.
7. Final Cheese Layer: Finish with the remaining cheese on top.
8. Bake: Cover the baking dish with foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10-15 minutes until the cheese is melted and bubbly.
9. Cool Down: Remove from the oven and allow the casserole to cool for about 5-10 minutes before serving.
10. Garnish and Serve: Add fresh cilantro if desired before serving.

Following these steps will lead you to a flavorful Beef Enchilada Casserole that is sure to impress everyone at the table!