Saute ground meat, chopped onion in large skillet over medium heat, until meat is browned and onions are soft.
Add salt and beans and heat through. Remove meat mixture from pan and set aside.
In medium skillet, combine Sauce Ingredients (e.g., tomato sauce, salt, chili powder, chopped onion and tomatoes). Simmer over low heat for 10 minutes. Allow to cool before proceeding.
In a large salad bowl, layer lettuce, crumbled tortilla chips, meat mixture, sauce, and grated cheese. Repeat. Garnish with tomato wedges, sliced olives, and whole tortilla chips.