One of the baon I prepared for All Saints' Day is egg sandwich. This is a fairly easy recipe to make even kids can do this. (as long as they are supervised by an adult)
4 hardboiled eggs
80mg of mayonnaise (1 small packet)
salt and pepper to taste
Chopped the boiled eggs and put in a bowl. Add in the mayonnaise. Chop the onion and combine it into the mixture. Add salt and pepper according to your taste.
To serve a healthier snack I use wheat bread but any bread will do.