Preheat oven to 475°F.
Remove pizza dough from the fridge.
Dust a cutting board generously with flour. Remove pizza dough from package and place it on the cutting board. Allow dough to rest for about 10-15 minutes.
Add a tablespoon of olive oil to a large skillet and heat it up over medium heat.
Add sliced sausage to skillet and cook until browned and cooked through, remove from heat and set aside.
Shred cheese, slice red bell pepper and red onion.
Use a paper towel to spread out and coat pizza stone/steel with about a teaspoon of olive oil.
Use a rolling pin to start rolling out the pizza dough on the floured cutting board.
Transfer the dough onto the oiled pizza stone/steel and continue rolling out the dough towards the edges.
Use your hands to gently press the dough out to the edges of the pizza stone/steel.
Top dough evenly with pizza sauce, then half the shredded Mozzarella cheese.
Add cooked sausage, sliced red onions and sliced red bell peppers.
Top pizza evenly with remaining cheese.
Bake for 20-30 minutes until the edges of the crust are a deep golden brown, the toppings are slightly charred along the tips, and the cheese is hot, bubbly and golden brown along the edges of the pizza.
Remove pizza from oven and allow it to rest for 5-10 minutes on the hot stone/steel before cutting it into slices.