Preheat your oven to 400°F (200°C).
In a mixing bowl, combine ground chicken, Parmesan cheese, egg, garlic powder, Italian seasoning, salt, and black pepper. Mix well until all ingredients are thoroughly combined.
Spread the chicken mixture onto a parchment-lined baking sheet, shaping it into a pizza crust about 1/2 inch thick. Bake for 15-20 minutes or until the crust is golden and cooked through.
Remove the crust from the oven and spread marinara sauce evenly over the top. Sprinkle mozzarella cheese and add your choice of toppings such as bell peppers, mushrooms, and olives.
Return the pizza to the oven and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly.
Let it cool for a few minutes before slicing and serving. Enjoy your healthy Chicken Crust Pizza!