Preheat oven to 350°F. Grease a 12cup sized bundt pan.
In a medium bowl, stir together sugar, ground ginger, ground nutmeg and orange zest. Set aside. Cut each biscuit into quarters. Dip each piece of biscuit into melted butter then coat with the sugar mixture. Arrange coated biscuit pieces evenly in the bundt pan.
If you have any remaining melted butter and sugar mixture, stir them together and pour over arranged biscuit pieces. Bake for 35-40 minutes or until cooked through.
Let cool 5-10 minutes then turn over onto a serving plate.
For the glaze, stir together powdered sugar, milk, vanilla extract and orange zest. Drizzle over monkey bread and serve warm.