01 - Prepare pasta according to package directions. Drain thoroughly, rinse under cold water to stop cooking process, and set aside to cool completely.
02 - If using meat, brown ground beef or turkey in skillet over medium heat until fully cooked, breaking apart during cooking. Drain excess fat and allow to cool.
03 - In large mixing bowl, toss together cooked pasta, meat (if using), cherry tomatoes, black beans, corn, red onion, bell pepper, lettuce, cheese, and olives until evenly distributed.
04 - Whisk together sour cream, mayonnaise, taco seasoning, lime juice, salt, and pepper in small bowl until completely smooth and well combined.
05 - Pour dressing over salad mixture and toss thoroughly until all ingredients are evenly coated with creamy mixture.
06 - Just before serving, fold in crushed tortilla chips and fresh cilantro to maintain crunch and freshness.
07 - Serve chilled or at room temperature. Do not refrigerate with chips added, as they will become soggy.