Heat the butter and olive oil in a medium saucepan over medium-low heat until the butter is melted. Add the fresh and granulated garlic, pepper flakes, oregano, and a pinch of salt and cook, stirring occasionally, until garlic is softened but not browned, about 1 minute. Remove from heat.

Place the bread cut-side-up on a clean work surface. Using a rimmed baking sheet (I use the sheet tray from my toaster oven), press down on the bread evenly until compressed to about 2/3rds of its original height.

Place bread on top of rimmed baking sheet. Using a pastry brush, brush half of garlic/butter/oil mixture evenly over cut surfaces of bread, making sure to get plenty of bits of garlic and herbs.

Add pizza sauce to remaining garlic/butter/oil mixture in pan, stir to combine.

Spread a VERY THIN layer of mozzarella evenly over surface of bread and transfer to oven. Bake @ 400F until cheese is barely melted, 3-5 minutes.

Spread a layer of sauce, then spread remaining mozzarella on top of sauce. Top with sliced pepperoni, bits of raw Italian sausage, and dollops of hot giardiniera. Sprinkle with parmesan.

Bake @ 400F until sausage is cooked and cheese is melted and just starting to brown, about 6-7 minutes. Remove from oven and immediately sprinkle with more Parmesan and the chopped basil. Drizzle with a little extra-virgin olive oil.