This delicious taco casserole uses ground beef & black beans to fulfill your cravings for a hearty one-dish meal. Add tortillas, taco shells, or chips, or serve it with lettuce for a low-carb meal!
Preheat the oven to 350 F. Spray a 9-by-13-by-2-inch baking dish with cooking oil spray.
Heat 1 tablespoon of the vegetable oil in a large skillet over medium heat. Add the ground beef and cook for about 7 minutes, or until no longer pink, breaking it up into small pieces. Remove the ground beef to a plate and discard any excess drippings in the skillet.
Add the remaining 1 tablespoon of vegetable oil to the skillet. When the oil is hot and shimmering, add the onion and bell pepper. Cook for about 5 minutes, or until the onion is softened. Add the garlic and cook for 1 minute longer.
Return the beef to the skillet and add the black beans, tomato paste, chili powder, cumin, paprika, oregano, salt, pepper, salsa, and tomatoes. Stir to blend the ingredients and bring to a simmer. Simmer for 2 minutes.
Stir 1 cup of the cheese into the meat mixture and turn it into the prepared baking dish. Sprinkle the remaining 1 cup of cheese over the mixture.
Bake the casserole for 20 to 30 minutes, or until the cheese is melted and the casserole is hot and bubbling around the edges.
Remove to a rack and let stand for 5 minutes before serving.
Serve with shredded lettuce, taco chips, and your favorite toppings.