01 - Bring a large pot of salted water to a rolling boil. Add rotini or penne and cook according to package directions until al dente. Drain thoroughly and rinse under cold running water to halt cooking. Set aside to cool completely.
02 - Heat a dry skillet over medium-high heat. Add corn kernels in an even layer and sauté without oil for 3 to 5 minutes, tossing occasionally, until lightly charred and caramelized spots appear. Remove from heat and let cool.
03 - In a large mixing bowl, toss together the cooked chicken, halved cherry tomatoes, diced red onion, charred corn, diced jalapeño (if using), and chopped cilantro until evenly distributed.
04 - In a separate bowl, whisk together mayonnaise, sour cream, fresh lime juice, smoked paprika, chili powder, garlic powder, salt, black pepper, and crumbled Cotija cheese until smooth and well blended.
05 - Add the cooled pasta to the chicken and vegetable mixture. Pour the dressing over the top and gently toss until every component is thoroughly coated and the dressing is evenly distributed throughout.
06 - Just before serving, scatter crushed tortilla chips over the salad for a crispy finish. Garnish with additional crumbled Cotija, fresh cilantro, and a squeeze of lime if desired. Serve chilled or at room temperature.