01 -
Turn your oven to 350 degrees and let it preheat.
02 -
In a large skillet over medium-high heat, cook the ground beef and diced onion together. Break up the meat into small pieces as it browns. Once it's cooked all the way through, drain off the excess fat.
03 -
Add the taco seasoning to the cooked beef according to the package directions. Stir in the diced green chiles and about a quarter cup of the enchilada sauce. Let it simmer for 5 minutes.
04 -
Pour half a cup of enchilada sauce into the bottom of a 9 by 13 inch baking dish and spread it around.
05 -
Lay 2 or more tortillas on the bottom of the dish until the whole surface is covered. You can tear them in half if you need to fill in gaps.
06 -
Spread half of the ground beef mixture over the tortillas in an even layer. Sprinkle half of the drained pinto beans on top of the beef. Add half a cup of cheddar cheese and half a cup of Monterey Jack cheese. Drizzle with a quarter cup of enchilada sauce.
07 -
Add another layer of tortillas, then repeat with the remaining beef, beans, another half cup of each cheese, and another quarter cup of enchilada sauce.
08 -
Top with a third layer of tortillas. Sprinkle the rest of the shredded cheddar and Monterey Jack cheese over the top. Drizzle with the remaining quarter cup of enchilada sauce.
09 -
Cover the casserole dish tightly with aluminum foil. Bake for about 30 minutes until the cheese is melted and everything is heated through.
10 -
Let the casserole cool for a few minutes before slicing. Top with shredded lettuce, diced tomatoes, diced red onion, and sour cream if you like. Serve hot and enjoy.