Preheat oven to 400°F.
Cook bacon in a large skillet until crispy; set aside and drain grease.
Brown sausage with bell pepper and onion. Reserve a spoonful for topping.
Stir in garlic, pepperoni, Canadian bacon, and olives; cook 1 minute.
Add marinara sauce, water, Italian seasoning, and salt. Simmer 2–3 minutes.
Stir in cooked pasta and half the bacon. Sprinkle Parmesan, then top with 2 ½ cups of the mozzarella.
Add reserved toppings, remaining bacon and remaining mozzarella. Sprinkle with red pepper flakes. Bake 12–15 minutes until bubbly.Serve hot and enjoy!
