Cook the pasta according to the package directions. Drain, rinse under cold water until completely cooled, then toss with a small drizzle of olive oil if desired to help prevent the pasta from sticking while you prepare the remaining ingredients.
Meanwhile, heat a large skillet over medium-high heat. Add the corn and cook for 5–7 minutes, stirring occasionally, until lightly charred. Set aside to cool. (You can also grill fresh corn until charred, then slice the kernels off the cob.)
To a blender, add the cottage cheese, milk, olive oil, lime juice, pickled jalapeño brine, honey, chili powder, smoked paprika, garlic powder, onion powder, salt, black pepper, and hot sauce. Blend until completely smooth. If needed, add a splash of milk until the dressing reaches a pourable consistency.
In a large bowl, combine the cooled pasta, chicken, chickpeas, charred corn, bell pepper, jalapeño, green onions, cilantro, and cotija cheese.
Pour the dressing over the salad and toss until everything is evenly coated.
Gently fold in the avocado just before serving. Top with crushed tortilla chips, extra cotija, a sprinkle of Tajín, and fresh lime wedges, if desired.