I love macaroni salad but after eating healthier for the past 12yrs, I can no longer eat those prepared salads that feel like they sit in the bottom of your stomach for days. I'm not sure where I saw the original recipe but I've tweeked it around to my liking.
Cook pasta according to package directions; rinse and drain. Place in a large bowl; set aside. In a small bowl combine pasta, yogurt, mayonnaise and lemon juice; stir until thoroughly combined. Add to pasta, then stir in egg whites, celery and pickle relish. Season with salt and pepper. Sprinkle with chives.
Refrigerate in an airtight container. Keep up to 3 days.