Put raw ground beef in casserole. 4 ingredients later: A hearty dish emerges!

Let it cool for a few minutes before serving.
Variations & Tips
For a bit of extra nutrition, you can add a can of drained black beans or corn to the beef mixture. If you like it spicy, consider adding some chopped jalapeños or using a spicier salsa. For a vegetarian version, substitute the ground beef with a plant-based meat alternative or more beans. You can also experiment with different types of cheese, like pepper jack for a kick or Monterey Jack for a milder flavor.