Avocado peel and cut into cubes. Chop finely. Press the garlic. The feta cheese, avocado, onion and garlic placed in a blender. Add the juice of half a lemon. Stir 1-2 times a pulse to desired consistency. Season to taste and garnish with remaining lemon half. It is ideally combined with toasted bread and can be served with vegetable meatballs.