Toast the bread. In a bowl, mash the avocado with a fork until smooth. Mix in the cilantro, and lemon juice to taste, and season with salt and pepper to taste. Spread the avocado onto the bread slices.
Mix all the ingredients for the spritzer.
Preheat the oil in a non-stick pan over medium-low heat. Crack the eggs on a flat surface and into the pan being careful not to break the yolk. Cook until the whites of the eggs are firm and no longer runny. Season with salt and pepper.