In a food processor process all the ingredients, except the bread crumbs, until almost smooth. Transfer to a bowl, add the bread crumbs and knead to form a soft "dough".
Wet your hands and form balls the size of a small walnut.
Drizzle with some olive oil and bake for 15 minutes.
Switch to broil and bake for another 5 - 10 minutes or until golden brown.
Serve humus balls with the dressing, parsley and scallions.
Extra vegan option: Just replace yogurt dressing with your favorite tomato sauce or some ketchup!
They will keep refrigerated for 3-4 days.