Combine softened butter, Vegeta pastes or onion jam, and/or pesto Genovese and Parmesan cheese in a bowl. Place a rack in the middle of the oven and preheat it to 210 °C / 410 °F. Line a baking sheet with parchment paper.
bake the bread
Slice bread in half lengthwise. Brush both cut sides with prepared herb butter. Place on a prepared baking sheet with the cut side up. Bake in the oven for 8 minutes at 210 °C / 410 °F.
When the bread bakes, make the pizza sauce. In a bowl, stir to combine tomato sauce, pinch of salt, pinch of black pepper, olive oil, and oregano. Spread the sauce over the bread.
Cut the Mozzarella into small cubes and arrange them on the sauce. Arrange the Pepperoni slices on top. Place in the oven on the upper rack. Turn the settings on low broil and bake for 4 - 6 minutes at 210 °C / 410 °F or until the cheese melts.
Transfer from the oven, sprinkle with basil and sprinkle with Parmesan cheese. Cut into slices and serve.