Yes, this is a different but great way to use up leftover Easter eggs. But don't file this recipe away till next Easter. This also goes well on the hors d'oeuve table or serve as a simple snack or a nice luncheon dish. In this dish, hard-cooked eggs are covered with a mayonnaise made with tuna fish. You've more often heard of the sauce served with chicken breast or veal, perhaps, but give this variation a try!