In a bowl, mix together chopped eggs, mayonnaise, sweet relish and salt and pepper. Stir in green onions, if using. Cover bowl with plastic wrap and place in the refrigerator for a couple of hours before serving.
If you can find watercress, it is heavenly on this egg salad. Also, if you don't like relish, just leave it out. Add a smidgen of yellow mustard to give the egg salad a little kick.