2 lbs. ground beef
1 lg. onion, chopped
2 tbsp. chili powder
2-3 tsp. ground cumin
1 tsp. salt
1 (15 oz.) can ranch style beans
6 frozen corn tortillas, thawed
1 1/2 c. shredded Monterey Jack cheese
1 1/2 c. shredded cheddar cheese
1 (10 oz.) can tomatoes and green chilies
1 (10 oz.) can cream of mushroom soup, undiluted

Cook ground beef and onion in large skillet until meat is brown and onion is tender; discard pan drippings. Add chili powder, cumin and salt; stir well. Cook meat mixture over low heat 10 minutes.