Boiled Egg Sandwich

Finely slice one hard boiled egg. Apply butter on two slices of bread (on one side) and toast the buttered side. Layer the un-toasted side of the bread with lettuce leaves, onion and tomato slices. Place a cheese slice and over it spread some mustard sauce. Place egg slices, sprinkle some salt and black pepper powder and cover with the other toasted bread slice and serve.