Preheat the oven to 400° F. Line a large baking sheet with parchment paper. Cut the French bread in half lengthwise. Place halves, cut side up, onto the prepared baking sheet.
In a medium bowl, mix the softened butter, minced garlic, and Italian seasoning together until combined. Spread this butter mixture evenly over the two bread halves, spreading it all the way to the edges. Sprinkle both cheeses evenly over the garlic butter on both bread halves.
Bake uncovered for 12 minutes or until the cheese is melted and bubbly. At this point, you can now turn on the broiler and heat the bread for another 30 seconds, or until golden and crispy. *Watch the entire time to prevent bread from burning! * Carefully remove from oven. Slice and serve warm. Enjoy!