Mexican Crockpot Casserole

12 Flour Tortillas
1 cup Salsa
1 onion-copped
1 can cream of chicken soup
1 can cream of mushroom soup
1 can refried beans
1 lb. hamburger**
1 cup sour cream
grated cheddar cheese
** You may use both beans and burger--or one of your choice
Mix salsa, onion, both soups, and sour cream. Tear tortillas in pieces.
Layer beans, meat, soup mix, then tortillas. Continue layering until full.
Cook on high for 6 hours.
Add cheese 30 minutes before serving.