01 - Cook pasta according to package directions until al dente. Drain thoroughly and rinse under cold water to stop cooking process. Set aside to cool completely.
02 - If using meat, brown ground beef or turkey in skillet over medium heat, breaking apart with spoon until fully cooked. Drain excess fat and allow to cool before combining with pasta.
03 - In large mixing bowl, combine cooled pasta, cooked meat (if using), cherry tomatoes, black beans, corn, red onion, bell pepper, lettuce, cheese, and olives. Toss gently to distribute ingredients evenly.
04 - Whisk together sour cream, mayonnaise, taco seasoning, and lime juice in small bowl until smooth and fully incorporated. Season with salt and pepper to taste.
05 - Pour prepared dressing over salad mixture. Fold gently until all ingredients are evenly coated with creamy dressing. Avoid over-mixing to prevent crushing vegetables.
06 - Just before serving, fold in crushed tortilla chips and fresh cilantro. This ensures chips maintain their crispy texture and cilantro stays vibrant.
07 - Serve immediately chilled or at room temperature. Best enjoyed same day for optimal texture and flavor.