When the mayo jar is empty but you're in the middle of making an egg salad sandwich, reach for plain nonfat yogurt instead .... This light egg salad mixture uses yogurt to bind everything together in what is destined to become a favorite in your recipe box. Capers, shallot, and mustard add lots of bright, distinctive flavor, while the addition of minced dill fronds helps to keep things fresh. Best of all, this egg salad is loaded with lots of crunch—from crisp cucumbers and bursting, ripe grape tomatoes. It's delicious in a sandwich or mounded atop a bed of lightly dressed greens for a bit of added protein in your salad. To take things in a fruity direction, swap in seedless red grapes for the tomatoes, celery for the cucumber, and try finely minced fresh rosemary or snipped fresh chives in place of the dill.