Preheat your oven to 425°F and grease a 9x13-inch baking dish.
Cook the ground beef in a skillet over medium heat until browned.
Add chopped onion and minced garlic, cooking until softened.
Mix in the black beans, salsa, chili powder, paprika, and cumin.
Let the mixture simmer for 10 minutes to combine flavors.
Layer the baking dish with four corn tortillas.
Spoon half of the beef mixture over the tortillas.
Sprinkle a layer of cheese.
Repeat the layers, finishing with tortillas and cheese.
Bake the dish for 20-25 minutes, or until bubbly and the cheese is melted.
Top with dollops of sour cream and garnish with fresh cilantro if desired.
Allow it to cool for a few minutes before slicing and serving.