Follow these straightforward steps to create your Creamy Street Corn Pasta Salad:

1. Cook the Pasta: Begin by boiling a large pot of salted water. Add the rotini pasta and cook according to package directions until al dente. Drain and rinse under cold water to cool.

2. Prepare the Corn: If using fresh corn, cut the kernels from the cobs. If using frozen corn, thaw it by placing it in warm water for a few minutes before draining.

3. Sauté the Corn (Optional): For a more enhanced flavor, in a skillet over medium heat, sauté the corn for 3-4 minutes or until slightly charred. This step adds an incredible depth to the salad.

4. Combine Vegetables: In a large mixing bowl, combine the halved cherry tomatoes, chopped red onion, and cooked corn.

5. Make the Dressing: In a separate bowl, whisk together the mayonnaise, sour cream, lime juice, chili powder, salt, and pepper until smooth.

6. Add Pasta: Incorporate the cooked rotini pasta into the vegetable mixture.

7. Mix it All Together: Pour the dressing over the pasta and vegetables. Gently stir until everything is evenly coated.

8. Add Cheese: Fold in the crumbled cotija cheese, leaving some for garnish.

9. Chill: If possible, allow the salad to chill in the fridge for 30 minutes. This waiting period enhances the flavors.

10. Serve: Before serving, give the pasta salad a gentle toss, garnish with fresh cilantro and additional cotija cheese if desired.