Preheat oven to 400F. Place French bread halves on a baking sheet.
Spread ¼ cup of Rao's Homemade Alfredo Sauce on each French bread half. Sprinkle with mozzarella cheese. Layer chicken, bacon, green onions, and roma tomato on top. Grate Parmesan cheese over everything.
Bake for about 10 minutes, until cheese is melted. Slice and serve immediately!