How to Make It
Heat oven to 425°F. Place bread cut side up on a lightly oiled baking sheet.
Melt the butter in a small saucepan over medium heat. Add the garlic and cook, stirring often, until fragrant, 1 to 2 minutes; let cool slightly. Add the parsley, oregano, and ½ teaspoon salt. Brush the butter mixture onto the bread. Bake until the edges of the bread are crisp, 6-7 minutes. Remove from the oven.
Meanwhile, combine the tomatoes, olive oil, red pepper flakes, several grinds black pepper and remaining ¾ teaspoon salt in a blender or food processor and pulse until smooth.
Spread tomato sauce on the toasted bread. Top with mozzarella and Parmesan. Broil on high until the cheese is golden brown and bubbly, 6-7 minutes.
For three cheese: Add 1 oz. Asiago per third before baking
For pepperoni: Add ⅓ cup chopped pepperoni per third before baking
For margherita: Add fresh basil after baking