Prepare the Creamy Cheese Dressing: In a large salad bowl, combine room temperature cream cheese, sour cream, extra virgin olive oil, grated garlic, chopped fresh chives, salt, pepper, and crumbled cotija or feta cheese. Mix well.
Cook Pasta & Combine Salad: Cook short pasta until al dente. Drain immediately and toss the hot pasta with the prepared dressing in the salad bowl. Add shredded romaine lettuce, grilled or roasted corn, torn fresh basil, chopped fresh cilantro, diced spicy cheddar cheese, and diced avocado. Toss everything thoroughly to combine.
Make the Chili Butter: In a skillet over medium heat, melt salted butter until golden. Stir in smoked paprika, chili powder, cayenne pepper (adjust to preference), and a pinch of salt. Cook for one minute to allow spices to bloom, then remove from heat.
Make the Lime Mayo Dressing: In a small bowl, mix together mayonnaise (or yogurt) with fresh lime juice and a pinch of salt until well combined.
Serve and Enjoy: Serve the pasta salad warm or cold, as preferred. Drizzle with the Lime Mayo Dressing and top with a generous spoonful of the Chili Butter. For deeper flavors, let the salad sit for a bit before serving.