Preheat oven to 190°C (375°F)
Cut bread lengthwise and hollow slightly to make room for filling
In a bowl mix chicken, bacon, ranch dressing, cream cheese, mozzarella, cheddar, and garlic powder
Stuff mixture evenly into bread
Brush bread with melted butter and wrap loosely in foil
Bake for 20 minutes, then uncover and bake 10 more minutes until golden and bubbly
Garnish with parsley or green onions, slice and serve warm
