01 - Preheat oven to 425°F. Line a large baking tray or pizza stone with parchment paper.
02 - In a mixing bowl, combine ground chicken, egg, Parmesan cheese, garlic powder, Italian seasoning, salt, and black pepper. Mix thoroughly until all ingredients are fully incorporated.
03 - Spread the chicken mixture evenly onto the prepared baking tray, forming a 12-inch round circle approximately 1/3 inch thick.
04 - Bake the crust for 15 minutes, or until firm and beginning to turn golden brown.
05 - Remove crust from oven and carefully blot any surface moisture with paper towels to ensure crispiness.
06 - Spread pizza sauce evenly over the baked crust. Layer with mozzarella cheese, pepperoni slices, red onion, and bell pepper.
07 - Return to oven and bake for 8-10 minutes, until cheese is bubbly and golden.
08 - Allow pizza to rest for 5 minutes before slicing. Garnish with fresh basil leaves and serve hot.