Preheat the oven to 425°F.
Set a large oven-safe skillet over medium-high heat, then directly add the ground beef and start breaking it apart into small pieces.
1 pound lean ground beef
When the meat starts to render a bit of fat, stir in the bell pepper, zucchini, onion, cumin, chili powder, garlic powder, dried oregano, and 1/2 teaspoon salt. Stir well and continue to cook for 5-6 minutes, until the veggies are tender and the meat is well-browned.
1 bell pepper, 1 small zucchini, 1/2 red onion, 1 teaspoon ground cumin, 1/2 teaspoon each chili powder, garlic powder, and dried oregano, kosher salt
Reduce heat to medium-low. Add black beans, enchilada sauce, corn, and 1/2 cup of the cheese to the skillet. Stir well to combine.
1 (15 ounce) can black beans, 1 and 1/2 cups red enchilada sauce, 1 cup frozen corn, 1 and 1/2 cups shredded Mexican cheese
Cut the tortillas into 4 wedges each, then tuck the wedges into the skillet, stirring and pressing them down gently so that they are all coated with sauce. Sample and season with more salt to taste, then sprinkle the remaining 1 cup of cheese evenly on top.
4 medium-sized soft corn tortillas
Transfer skillet to the oven and bake for 12-15 minutes, until the cheese is melted and the sauce is bubbling around the edges.
While the skillet bakes, prepare whatever toppings you like—avocado, lime wedges, green onions, fresh cilantro, tomatoes, sour cream, etc.
avocado, green onions, cilantro, tomatoes, lime wedges, sour cream, etc.
Remove from the oven, top, and serve straight from the skillet or scooped into bowls, as desired.