Preheat oven to 325 degrees. Cut French Bread in half, lengthwise.
In a small microwave-safe bowl, melt butter in the microwave. Stir in garlic powder or garlic. Place the bread on a baking sheet. Spread garlic butter over the bread, making sure to cover it completely.
Bake for 15-20 minutes or until bread starts to become toasted. Remove from the oven and sprinkle with cheese. Change the temperature of the oven to 375 degrees.
Return to the oven and cook for 6-8 minutes longer, or until the cheese is completely melted and bubbly.
Remove from the oven and cut into slices. Sprinkle with fresh parsley, if so desired. Serve hot.