STEP-1
Preheat the oven to 350°F. Grease a 9×13-inch baking dish.
STEP-2
Cook the ground beef in a large skillet. Once browned drain, add the taco seasoning, sour cream, and the enchilada sauce and mix.
STEP-3
Spread 1/3 of the Frito corn chips (about 2 cups) over the bottom of the baking dish. Slightly crush them and spread half of the ground beef over the top. Next, add a layer of cheese (1 cup).
STEP-4
Add another layer of Fritos (about 2 cups, slightly crushed). Add the rest of the ground beef and another cup of the cheese.
STEP-5
Top with the remaining chips and cheese. Tent a piece of foil over the top so that the melting cheese doesn't stick to it.
STEP-6
Bake for 30 minutes then remove the foil and bake for another 5-10 minutes or until the cheese is fully melted. Let the casserole cool for 5 minutes and top with tomatoes, avocados, and cilantro.