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 pizza dough into a 12-inch round. Transfer to parchment paper.
03 - Spread pizza sauce evenly over dough, leaving a 1/2-inch border for the crust.
04 - Sprinkle mozzarella cheese evenly across the sauce layer.
05 - Distribute ground beef, pepperoni, sausage, bacon, and ham evenly over the cheese.
06 - Scatter red onions and bell peppers over the meat toppings.
07 - Sprinkle with oregano, crushed red pepper flakes, and black pepper to taste.
08 - Carefully transfer pizza with parchment to the preheated stone or baking sheet.
09 - Bake for 12-15 minutes until crust is golden and cheese is bubbly with browned spots.
10 - Remove from oven, let cool for 2-3 minutes, then slice and serve hot.