Kick your picnic game up a notch with this classic, creamy side packed with tangy flavor.
Cook the macaroni in salted water until al dente. Drain and rinse under cold water to quickly cool the noodles.
In a large bowl, add the cooled macaroni, diced celery, red bell pepper, red onion, and chopped hard-boiled eggs.
In a small bowl, whisk together the mayonnaise, Greek yogurt, mustard, white vinegar, granulated sugar, salt, black pepper, and garlic powder. Pour over the pasta.