Preheat the oven to 400°F (200°C).
In a small bowl, stir together the olive oil, Italian seasoning, garlic, paprika, salt, and black pepper. Set aside.
Add the chicken, broccoli, zucchini, bell pepper, and onion to a large mixing bowl. Drizzle the dressing on top, then toss to fully coat.
Spread the seasoned ingredients out onto a sheet pan.
Bake for 20 to 25 minutes, or until the chicken is cooked through, and the vegetables are lightly roasted.
Garnish with freshly chopped parsley and grated Parmigiano Reggiano cheese before serving.
