Preheat the oven to 450°F (230°C) and grease or line a baking dish with baking paper.
Cut the avocado in half lengthwise and remove the pit. Scoop out some of the flesh of each avocado half with a spoon to create a cavity. Cut a tiny slice at the bottom if necessary to help them stand upright.
Season with a pinch of salt and pepper.
Crack in the eggs and season again with a pinch of salt and pepper. Drizzle with olive oil.
Bake in the preheated oven for 15 minutes until the eggs are cooked through.
Optional: If you're adding additional ingredients like cheese or bacon, take them out half way through baking to add the ingredients.
Remove from the oven and serve immediately, optionally garnished with fresh herbs.