01 - Bring a large pot of salted water to a boil. Cook pasta according to package instructions until al dente. Drain, rinse under cold water to stop cooking, and set aside to cool completely.
02 - Heat a grill or cast-iron skillet over high heat. Grill or char the corn ears until lightly blackened on all sides, about 5–7 minutes. Cut kernels off the cob. If using frozen corn, thaw and pan-sear briefly to develop a smoky char.
03 - In a large mixing bowl, combine the cooled pasta, charred corn kernels, halved cherry tomatoes, diced red onion, chopped cilantro, and diced jalapeño. Toss gently to distribute evenly.
04 - In a small bowl, whisk together mayonnaise, sour cream (or Greek yogurt), lime juice, smoked paprika, chili powder, kosher salt, and black pepper until smooth and well blended.
05 - Pour the prepared dressing over the pasta and vegetable mixture. Toss gently until all ingredients are evenly coated.
06 - Add crumbled cotija cheese to the salad and fold in gently to incorporate without breaking down the cheese crumbles.
07 - Transfer to a serving bowl. Garnish with additional chopped cilantro and lime wedges. Serve chilled or at room temperature.