2 lbs. ground beef
1 stick butter
1 onion, chopped
1 (10 3/4 oz.) can cream of chicken soup
1 (8 oz.) can taco sauce
1 (15 oz.) can enchilada sauce
2 c. cheddar cheese, grated
1 pkg. soft corn tortillas

Brown ground beef. Saute onion in the butter. Add sauces and soups to the onion and meat mixture. Layer the meat mixture and tortillas in a large casserole, 9"x13", and top with grated cheese. Bake at 350 degrees for approximately 30 minutes.