01 - Cook pasta according to package directions until al dente. Drain thoroughly and rinse under cold running water to stop cooking and cool completely.
02 - If using fresh corn, heat skillet over medium-high heat and add corn kernels. Cook, stirring occasionally, until lightly browned and charred, about 5 minutes. Let cool completely.
03 - In a large mixing bowl, add cooled pasta, charred corn, diced red onion, red bell pepper, jalapeño, and chopped cilantro. Toss gently to distribute evenly.
04 - Whisk together mayonnaise, sour cream, fresh lime juice, lime zest, chili powder, smoked paprika, ground cumin, and hot sauce if using. Season with salt and black pepper to taste, whisking until completely smooth and combined.
05 - Pour prepared dressing over salad mixture. Toss thoroughly until all ingredients are evenly coated with the creamy dressing.
06 - Gently fold in crumbled cotija or feta cheese, reserving approximately 2 tablespoons for garnish.
07 - Transfer salad to serving bowl or platter. Sprinkle reserved cheese over top along with additional fresh cilantro if desired.
08 - Refrigerate for at least 20 minutes to allow flavors to meld. Serve chilled for optimal taste and texture.