Roll out the pizza dough to your preferred thickness and place on a piece of parchment paper. Drizzle half of the olive oil on the dough and brush to coat. Sprinkle with salt and ground black pepper.
Add the remaining olive oil to a pan over medium heat. Add the onions and cook until caramelized, about 8 minutes.
Spread the mozzarella cheese out evenly on the pizza dough. Top with onions, blue cheese, pear and prosciutto.
Bake for 10-15 minutes, or until the crust is golden and the cheese is bubbly.