Mexican Lasagna

1 lb ground beef
1/2 cup chopped onion
1 pkg taco seasoning
1 can (8oz) tomato sauce
1 can (15oz) pinto beans, undrained
1 tbsp chili powder
1 can green chilies, chopped
6 flour tortillas
2 cup shredded cheddar cheese

Brown beef and onion, drain.  Stir in taco seasoning, tomato sauce, beans and green chilies.
Layer half tortillas in 9x13 pan.  Spread half of the meat mixture and sprinkle half of
the cheese on top.  Repeat layer.  Bake at 350* for 30 minutes.  Let stand 10 minutes.