01 - Preheat oven to 475°F and place pizza stone or baking sheet inside to heat thoroughly.
02 - On lightly floured surface, roll pizza dough into 12-inch round. Transfer to parchment paper.
03 - Spread pizza sauce evenly over dough, leaving 1/2-inch border for crust.
04 - Sprinkle mozzarella cheese evenly across sauced surface.
05 - Distribute ground beef, pepperoni, sausage, bacon, and ham evenly over cheese layer.
06 - Scatter red onions and bell peppers over meat toppings.
07 - Sprinkle oregano, red pepper flakes, and black pepper over entire pizza.
08 - Carefully slide pizza with parchment onto preheated stone or baking sheet.
09 - Bake 12-15 minutes until crust turns golden brown and cheese bubbles with browned spots.
10 - Remove from oven, let cool 2-3 minutes, then slice and serve hot.