Mix. Combine ground chicken, mozzarella, parmesan, egg, Italian seasoning, garlic powder, salt, and pepper in a large bowl. Use your hands or a fork until everything is evenly mixed. (It will feel sticky, that’s normal.)
Shape. Line a baking sheet with parchment paper and lightly grease it. Press the chicken mixture into a thin, even circle about 1/4 inch thick. Keep the edges slightly thicker so they crisp up nicely.
Bake the crust. Bake at 400°F (200°C) for 20 to 25 minutes, until the crust is firm, cooked through, and golden on the edges. Pat off any excess moisture with a paper towel.
Top. Spread marinara sauce evenly over the par-baked crust. Add shredded mozzarella and your favorite toppings. (Don’t overload it or the crust won’t stay crispy.)
Broil. Return to the oven and broil on high for 3 to 4 minutes, until the cheese is bubbly and golden brown. Watch it closely so it doesn’t burn.
Slice. Let the pizza cool for 2 to 3 minutes before slicing. This helps the crust hold together. Top with fresh basil and serve.