1 med. onion, finely chopped
2 tbsp. butter
1 (15 oz.) can tomato sauce
1 (4 oz.) can green chilies
1 tsp. salt
1/2 lb. Monterey Jack cheese (sliced or grated)
2-3 c. cooked chicken or ground beef
8 oz. tortilla chips
1 c. sour cream
1/2 c. grated Cheddar cheese

Preheat oven 350 degrees. Saute onion in butter, add tomato sauce, chilies and salt. Simmer uncovered 10 minutes.

Layer in casserole dish: tortilla chips, Jack cheese, meat, sauce. Repeat layers. Bake 20 minutes. Remove from oven. Spread with sour cream and grated Cheddar cheese. Broil until cheese melts.