01 - Preheat oven to 475°F and place a pizza stone or baking sheet inside to heat thoroughly.
02 - On a lightly floured surface, roll out the pizza dough into a 12-inch round. Transfer to parchment paper.
03 - Spread pizza sauce evenly over the dough, leaving a 1/2-inch border for the crust.
04 - Sprinkle shredded mozzarella cheese evenly over the sauce base.
05 - Distribute ground beef, pepperoni, crumbled Italian sausage, bacon, and ham evenly over the cheese layer.
06 - Scatter sliced red onions and bell peppers across the pizza if desired.
07 - Sprinkle dried oregano, crushed red pepper flakes, and black pepper over the toppings.
08 - Carefully transfer the pizza with parchment paper to the preheated stone or baking sheet.
09 - Bake for 12-15 minutes until crust is golden brown and cheese is bubbly with lightly browned spots.
10 - Remove from oven and let cool for 2-3 minutes before slicing and serving hot.