- Preheat your oven to 375°F (190°C) and lightly grease a 9×13 inch baking dish.
- Cook the meat: In a large skillet over medium heat, cook the ground meat until it’s no longer pink, breaking it up with a spoon as it cooks. Add the chopped onion and minced garlic to the skillet and cook for another 5 minutes, until the onion is soft.
- Combine the ingredients: Add the black beans, corn, diced tomatoes with green chilies, salsa, and taco seasoning to the skillet. Stir to combine everything evenly. Let the mixture simmer for about 5 minutes, then taste and adjust seasoning with salt and pepper.
- Layer the casserole: Spread the cooked rice evenly at the bottom of the prepared baking dish. Pour the meat and vegetable mixture over the rice. Sprinkle the shredded cheese on top.
- Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 20 minutes. Remove the foil and bake for an additional 10 minutes, or until the cheese is bubbly and slightly golden.
- Serve: Let the casserole sit for a few minutes before serving. Garnish with fresh cilantro and offer sour cream on the side for those who like it.
Tips and Variations:
- Vegetarian Option: Substitute the ground meat with a meatless alternative or extra beans such as kidney beans or pinto beans for a vegetarian version.
- Rice Substitute: Quinoa or a mix of rice and quinoa can be a great alternative to plain rice, adding extra protein and texture.
- Extra Toppings: Feel free to top your casserole with sliced avocado, chopped green onions, diced tomatoes, or jalapeños for extra flavor and texture.
- Cheese Layering: For an even cheesier casserole, consider layering half of the cheese within the meat mixture and the other half on top before baking.
This Mexican casserole is a crowd-pleaser that’s as easy to make as it is delicious. It’s a fantastic way to bring the family together for a casual weeknight dinner or to impress your friends at a potluck. Plus, it reheats well, making it perfect for leftovers. Enjoy creating your own variations and discovering your favorite combinations!