The week after Easter could be National Egg Salad Week. Presented here is one recipe, serving 8, made with leftover hard boiled eggs. Also offers tips on how to store the eggs. http://www.urbanext.uiuc.edu/news/010411msc1.html
Salad made with yolks and some chicken, then formed into balls and placed back in halved whites. From Fannie Farmer. http://www.bartleby.com/87/r0966.html