01 -
Set the oven to 400°F and allow it to fully preheat.
02 -
Slice the bread loaf lengthwise into two halves and place them cut-side up on a parchment-lined baking sheet.
03 -
In a bowl, mix softened butter with minced garlic, Italian seasoning if using, salt, and pepper until thoroughly combined.
04 -
Spread the garlic butter generously and evenly over the cut surfaces of both bread halves.
05 -
Evenly distribute shredded mozzarella and grated Parmesan over the buttered bread halves.
06 -
Bake in the preheated oven for 12 to 15 minutes until the cheese has melted and bubbles. For a crispier finish, broil for 1 to 2 minutes at the end.
07 -
Remove from oven, sprinkle with chopped parsley if desired, slice into portions, and serve warm.