1. Preheat oven to 375 degrees.
2. Heat a skillet over medium heat, add ground beef and brown.
3. Add 1 1/2 cups of the tomato sauce and the taco seasoning mix, stirring to mix well.
4. Line the bottom of a greased baking dish with two cups corn chips.
5. Crush remaining corn chips, and set them aside.
6. Spoon meat mixture over corn chips in baking dish.
7. Combine remaining tomato sauce and the refried beans. Spread the mixture over the cooked meat mixture.
8. Bake in oven for 25 minutes.
9. Sprinkle with crushed corn chips and shredded cheese. Bake for 5 minutes or until the cheese is melted.
10. Optional: Sprinkle green onions and black olives on top.