Preheat oven to 180°C (356°F) on convection setting
Wash zucchini and cut in half lengthways, then cut into 0.5 cm thin slices; wash peppers, scoop out seeds, and cut into wedges
Season chicken fillets with salt and paprika powder, and place in a large baking dish
In a saucepan over medium-high heat, combine sieved tomatoes, cremefine, garlic powder, oregano, and pepper. Bring to a simmer and adjust seasonings to taste
Spread vegetables over the chicken and pour tomato sauce over everything
Sprinkle grated mozzarella evenly over the dish
Bake for 35-40 minutes until chicken reaches 74°C (165°F) internal temperature