Toast the whole grain bread slices until golden brown.
While the bread is toasting, cut the avocado in half, remove the pit, and scoop the flesh into a bowl. Mash the avocado with a fork and season with salt and pepper.
In a non-stick skillet, heat olive oil over medium heat. Crack the eggs into the skillet and cook until the whites are set but the yolks are still runny, about 3-4 minutes.
Spread the mashed avocado onto the toasted bread slices.
Carefully place a fried egg on top of each avocado toast.
Sprinkle red pepper flakes over the eggs for a hint of spice.
Garnish with fresh herbs like parsley or chives if desired.