Preheat oven to 400°F and line a baking sheet with parchment paper. Set aside.
In a small mixing bowl, add the garlic herb butter ingredients: ½ cup unsalted butter, 6 cloves garlic, 1 tsp garlic salt, 1 tsp onion powder, and 1 tsp dried basil
Stir well to combine.
Add the halves of 1 loaf crusty Italian bread to the prepared baking sheet, and generously spread butter mixture over the cut sides of the bread.
Top the garlic butter with slices of 12 oz fresh mozzarella, so they're evenly distributed.
Bake in preheated oven for about 10 minutes, or until the cheese is melted and the bread is lightly toasted.
Remove bread from the oven and set aside.
Top with 2 medium tomatoes and a handful fresh basil leaves, then a generous drizzle of balsamic glaze.
