Preheat your oven to 400°F and line two baking sheets with parchment paper.
Toss the sliced bell peppers and zucchini with olive oil on the first baking sheet and roast for 12 minutes until slightly tender.
In a medium bowl, combine the ground chicken, egg, sea salt, black pepper, garlic powder, and dried oregano until the mixture is uniform.
Transfer the chicken mixture to the second parchment-lined sheet and press it into a thin, even circle about 1/4 inch thick.
Bake the chicken crust for 15-20 minutes until the edges are golden-brown and the surface feels firm to the touch.
Remove the crust from the oven and spread the tomato sauce evenly over the surface, leaving a small border for the crust.
Arrange the roasted vegetables over the sauce and sprinkle the parmesan cheese evenly across the top.
Return the pizza to the oven for a final 5 minutes to melt the cheese and ensure the toppings are heated through before slicing.