01 - Bring a small pot of water to a rolling boil. Gently lower the eggs into the water and boil for 9 to 10 minutes until hard-boiled. Transfer eggs to cold running water to cool, then peel and slice into rounds.
02 - While the eggs cook, toast the bread slices in a toaster until golden brown and crisp on the surface.
03 - Halve the avocado, remove the pit, and scoop the flesh into a mixing bowl. Add the lemon juice, salt, and pepper, then mash with a fork until smooth and creamy.
04 - Divide the mashed avocado evenly between the two toasted bread slices, spreading it to the edges in an even layer.
05 - Arrange the sliced tomatoes over the avocado spread, then place the sliced hard-boiled eggs on top. Drizzle with olive oil if desired.
06 - Sprinkle with freshly chopped herbs and crushed red pepper flakes for added flavor. Serve immediately while the toast is still warm and crisp.