Preheat the oven to 425 degrees.
Prepare pizza dough and spread dough out like you would for a pizza on a parchment lined baking sheet, but do not bake it! Set aside.
Slice chicken sausage and set aside.
Cook the peppers and onions in oil in a large skillet over medium heat until tender.
Add the sausage to the peppers then add tomato sauce, mix to combine.
Stir in 1 cup mozzarella cheese.
Sprinkle remaining 1/2 cup of cheese down the middle of the pizza dough.
Place filling on top and roll up one half of the dough using the parchment paper to fold over.
Fold over the other half and use your fingers to press dough and seal together.
Keep seal side down and bake for 20-25 minutes until browned.
Allow to cool 10-15 minutes before slicing.
Enjoy!