Mix the chicken, parmesan cheese, salt, garlic powder, oregano, and parsley until well combined and no chunks remain.
Form the mixture into a ball and flatten it out on a baking sheet to create an even circle, forming the pizza crust.
Bake the crust at 425°F for 20-30 minutes until crispy.
Top the baked crust with tomato sauce, mozzarella cheese, pepperoni, red onions, and basil leaves.
Bake the topped pizza until the cheese is melted and bubbly.
