Fiesta Casserole

Directions

1. 1
   Cook ground beef and onions; drain.
2. 2
   Stir in taco seasoning mix and tomato sauce; simmer 5 minutes.
3. 3
   Place 3 cups chips in 2-quart baking dish.
4. 4
   Top with 1/2 of the grated cheese, meat mixture then remaining cheese.
5. 5
   Top with 2 cups chips.
6. 6
   Bake at 350° for 15 minutes.
7. 7
   Garnish with sour cream and chopped tomatoes if desired.