1. In a Dutch oven over medium heat, cook the beef with 1 envelope plus 2 tablespoons taco seasoning until no longer pink and drain.
2. In a very large serving bowl, combine lettuce, chips, tomatoes, kidney beans, olives, cheese, onion, chilies, and beef mixture.
3. Combine the salad dressing, salsa, sugar, and remaining taco seasoning and pour over salad. Toss to coat. Serve immediately.