I like to start with the dressing because it allows the flavors to blend while I prep the rest. Combine Greek yogurt, lime juice, garlic, cilantro, salt, and cayenne in a food processor. Blend until smooth, then refrigerate until ready to use.
Cook the pasta according to package directions until al dente. Drain and rinse under cold water to stop cooking and cool it down. Add the pasta to a large mixing bowl once it’s fully cooled.
While the pasta cools, prepare the fresh ingredients. Slice the cherry tomatoes, chop the red onion, and cut the corn kernels off the cob. Chop cilantro finely for extra flavor.
Add all the prepared vegetables to the pasta bowl. Pour your desired amount of cilantro lime dressing over the salad. Gently toss to coat everything evenly without mashing the avocado.
Top individual servings with diced avocado and a sprinkle of cotija cheese if you like. Serve immediately for the best freshness and vibrant flavor.