01 - Toast the bread slices until golden and crispy, using a toaster or a skillet over medium heat.
02 - While the bread toasts, halve the avocado, remove the pit, and scoop the flesh into a bowl. Mash with a fork, then stir in the lemon juice, salt, and pepper to taste.
03 - Heat the olive oil or butter in a non-stick skillet over medium heat. Crack the eggs into the skillet and cook to your preference — sunny side up, over easy, or poached — seasoning with salt and pepper.
04 - Spread the mashed avocado evenly over each toasted bread slice.
05 - Place one cooked egg on top of each avocado toast.
06 - Add optional toppings such as chili flakes, halved cherry tomatoes, or fresh herbs. Serve immediately while warm.