Toast the bread (I like it crunchy both for the texture and ease of eating by hand), and then spread with the avocado (I lightly mash it with a fork, but you can slice it if preferred). Spray or place a teaspoon or two of oil or butter in a small, nonstick skillet and fry the egg as desired. (Or use scrambled, poached, sliced hard-boiled or leftover deviled egg.)

Place the prepared egg over the avocado, sprinkle with salt and pepper and any optional extras. You may prefer to place some of the optional toppings, like the tomato slice or ham, under the egg instead of on top.