Preheat oven to 370 degrees. Cut the bread loaf horizontally and then diagonally to make four pieces. Brush the bread with olive oil on the top and bottom of each slice. Spread with tomato sauce and sprinkle with Italian seasoning. Then spread with mozzarella and Parmesan cheese. Top with pepperoni and drizzle with remaining olive oil. Bake for 7 minutes or until cheese has melted.