Boil the eggs and peel the shells.
Cut the avocado in half, remove the pit and mash the flesh.
Finely chop cherry tomatoes and onion.
Add chopped tomatoes, onion, and lemon juice to the mashed avocado and mix well.
Chop the boiled eggs and mix them with the guacamole.
Season with salt and pepper to taste.
Transfer to a bowl and serve.