Making Beef Enchilada Casserole is a straightforward process. Just follow these steps:

1. Preheat the Oven: Start by preheating your oven to 350°F (175°C).
2. Cook the Beef: In a large skillet over medium heat, cook the ground beef until browned. Drain excess fat if necessary.
3. Add Vegetables: Add diced onion and minced garlic to the beef. Sauté until the onion is soft, about 3-4 minutes.
4. Season: Stir in the enchilada sauce, black beans, diced tomatoes, cumin, chili powder, salt, and pepper. Let it simmer for 5 minutes.
5. Layer the Tortillas: In a baking dish, start with a layer of the beef mixture. Top with a layer of torn corn tortillas (about 3 torn pieces).
6. Add Cheese: Sprinkle with a layer of shredded cheese. Repeat the layering process—beef mixture, tortillas, and cheese until all ingredients are used. Finish with a final layer of cheese on top.
7. Bake: Cover the baking dish with aluminum foil and bake for 20 minutes. Remove the foil and bake for an additional 10 minutes or until the cheese is bubbly and golden.
8. Garnish: Once out of the oven, let the casserole cool for a few minutes. Garnish with fresh cilantro if desired before serving.

This simple step-by-step guide ensures your Beef Enchilada Casserole turns out perfectly every time!