Preheat oven to 425°F. 

Slice avocado in half and place on a small baking sheet, tightly packing avocado so they remain right side up. 

Pour egg into the avocado, top with salsa or matbucha. Bake at 425°F for 15 minutes, until egg is set to your liking. 

Top with chopped parsley and feta cheese, if desired, and serve with lemon wedges. Serve immediately.