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 for easy handling.
03 - Spread pizza sauce evenly over dough, leaving a 1/2-inch border for the crust.
04 - Sprinkle shredded mozzarella cheese uniformly across the sauced surface.
05 - Distribute ground beef, pepperoni, Italian sausage, bacon, and ham evenly over the cheese layer.
06 - Scatter red onions and bell peppers across the pizza if desired.
07 - Sprinkle dried oregano, crushed red pepper flakes, and black pepper over toppings.
08 - Carefully slide pizza with parchment onto the preheated stone or baking sheet.
09 - Bake for 12-15 minutes until crust turns golden brown and cheese bubbles and browns in spots.
10 - Remove from oven and let cool for 2-3 minutes before slicing and serving hot.