01 - Cook pasta according to package directions. Drain, rinse under cold water, and set aside to cool completely.
02 - In a skillet over medium heat, brown ground beef or turkey until fully cooked, breaking apart as it cooks. Drain excess fat and let cool. Skip this step for vegetarian version.
03 - In a large bowl, combine cooled pasta, cooked meat (if using), cherry tomatoes, black beans, corn, red onion, bell pepper, lettuce, cheese, and olives.
04 - In a separate small bowl, whisk together sour cream, mayonnaise, taco seasoning, lime juice, salt, and pepper until smooth and creamy.
05 - Pour dressing over salad ingredients and toss until everything is evenly coated with the creamy mixture.
06 - Immediately before serving, fold in crushed tortilla chips and fresh cilantro for added crunch and flavor.
07 - Serve chilled or at room temperature. Best enjoyed the same day to maintain optimal texture.