Preheat your oven to 400°F and line a large baking sheet with a piece of parchment paper to ensure the crust does not stick.
In a medium-sized mixing bowl, thoroughly combine the ground chicken breast, egg, grated parmesan, garlic powder, dried oregano, sea salt, and black pepper.
Place the chicken mixture in the center of the parchment paper and use your hands to press it out into a thin, even circle approximately 10 inches in diameter.
Bake the chicken crust in the preheated oven for 18 to 20 minutes, or until the edges are deeply golden and the crust feels firm to the touch.
Remove the crust from the oven and evenly spread the tomato puree across the surface, leaving about half an inch of space around the edges.
Tear the fresh mozzarella into bite-sized pieces and scatter them over the tomato sauce for an even distribution of creaminess.
Return the pizza to the oven for an additional 5 to 7 minutes, or until the mozzarella is completely melted and starts to slightly brown in spots.
Remove the pizza from the oven and immediately garnish with the fresh basil leaves, allowing their aromatic oils to release from the heat.
Let the pizza rest for at least 2 minutes to allow the crust to set before using a pizza cutter to slice it into wedges.