Enchilada Casserole

I discovered this dish about 10 or more years ago. I have long forgotten how I discovered it, so I can't give credit to anyone. I recently went to a dear friend's house over the weekend for a mini scrapping retreat and offered to cook dinner for the ladies, and I made this dish:

Enchilada Casserole

3 lb ground beef
1 pkg (2 tubes) beef Chorizo (remove casing)
1 onion, chopped
3 cloves garlic
2 pkgs taco seasoning
1 28 oz can Las Palmas Enchilada Sauce (+ small can, if needed)
2 dozen corn tortillas
1 8 oz pkg Velveeta Cheese
1 8 oz pkg Velveeta Cheese, Mexican variety hot or mild
1 16 oz sour cream
Vegetable oil for frying
1 8 oz can kidney beans (optional)

Preheat oven to 350°. Brown ground beef with onion and garlic. Darin grease (for additional fat drainage you can rinse with warm water). In a separate pan fry chorizo until cooked. It is hard to tell when this happens but when chorizo is watery it is done. Mix chorizo into ground beef mixture. Add taco seasoning and ¾ cup of enchilada sauce. Let simmer as long as possible, stirring frequently, anywhere from 20 minutes to 1 hour. Add kidney beans if desired. In 6-8” frying pan, fry tortillas in about ¼” vegetable oil. Fry soft (3-5 seconds per side). Place on paper towel and blot excess oil. (I actually put 6 tortillas on a baking sheet and spray each side lightly with Pam cooking spray and bake in oven for about 6 minutes - this softens the tortillas up nicely and saves you the mess of frying). Set aside. Cut cheese into cubes ½” x ½” and set aside. (Cut only 10-15 cubes of each style cheese as needed). Pour enchilada sauce into a flat pie plate.
To Layer: You will need a 10” x 13” x 2” baking dish. Spoon a small amount of meat mixture into pan to cover bottom. Dip tortillas in enchilada sauce. Layer tortillas on top of mixture to cover - up to 6 tortillas - 2 across and 3 down - they may overlap a bit. Layer meat mixture and then about 10 pieces of cheese (5 of each type), 3-5 dollops of sour cream. Continue layering until all the mixture is gone. I prefer to end the casserole with the cheese and sour cream on top. Cover with foil and bake until dish is hot and cheese is melted, approximately 20 - 30 minutes.