01 - In a large oven-proof skillet over medium-high heat, cook the ground beef, breaking it up with a spoon, until browned throughout. Drain excess fat if desired.
02 - Add diced onion, minced garlic, and diced red bell pepper to the skillet. Sauté until softened, about 3 to 4 minutes.
03 - Stir in drained black beans, ground cumin, chili powder, smoked paprika, salt, and black pepper. Cook until fragrant, about 1 minute.
04 - Pour in the enchilada sauce and tomato sauce. Mix well to combine all ingredients.
05 - Arrange half of the quartered corn tortillas evenly over the beef mixture. Sprinkle evenly with half of the cheddar and Monterey Jack cheeses.
06 - Top with the remaining tortillas and finish with the rest of the shredded cheeses.
07 - Reduce heat to low, cover the skillet, and simmer for 5 to 7 minutes until heated through and cheese is melted.
08 - Place the skillet under a broiler for 2 to 3 minutes to achieve a bubbly, golden cheese topping, if desired.
09 - Garnish with sliced green onions, chopped cilantro, sour cream, or diced avocado to taste. Serve hot.