This is enough for 4 8x8 pans
2 lbs ground beef
1 diced onion
6 cups refried beans (I just used homemade mashed pinto beans)
at least 3 cups shredded cheddar cheese
4 cups cooked white rice
package of burrito sized tortillas cut in half
Brown the hamburger with onion. Season with cumin, salt and pepper, and chili powder.
Spray the pans with cooking spray then line them with tortilla halves that cover the bottom and drape over the sides.
Layer ground beef, beans, rice, then cheese on top of the tortillas. Fold the hanging edges over the top.
Cover with foil and freeze.
To Serve: Thaw. Bake covered at 350 for 1-1/2 hours. Take off the foil and top with more cheese. Serve with sour cream or salsa.