Cook 1 box protein elbow pasta per package directions. Drain and set aside to cool.
Toss 16 oz frozen corn with 1 teaspoon oil,½ teaspoon salt + pepper Air fry at 350°F for 10–15 minutes until edges start to crisp. (No air fryer? Spread on a baking sheet and bake at 400°F for 20–25 minutes.)
Whisk together 1 cup plain non-fat Greek yogurt, 4 tablespoon mayo, 2 tablespoon lime juice, ¼ cup milk, and salt and pepper to taste in a large bowl until smooth.
To the bowl, add the cooked pasta, cooked corn, 1 can black beans, ½ red onion, 1 jalapeño, ½ cup cotija cheese, and 2 handfuls cilantro. Toss until everything is evenly coated.
Cover and refrigerate for at least 30 minutes. Overnight is even better - the dressing absorbs into the pasta and the flavor gets way better.
Before serving, give it a taste. Add more cotija for saltiness or a fresh squeeze of lime to brighten it up. Toss and serve cold.