Preheat oven to 400°F (200°C).
Cut the chicken breast into bite-sized pieces and toss with a small amount of the salt and pepper.
Spread the chicken, broccoli florets, and sliced bell peppers on a parchment-lined baking sheet.
Roast for 15-18 minutes until the chicken is cooked through and the vegetables are tender.
Boil the whole wheat penne in salted water until al dente, then drain and set aside.
Mince the garlic cloves and finely chop the fresh parsley.
In a large mixing bowl, combine the hot pasta, roasted chicken, and roasted vegetables.
Toss the mixture with the extra virgin olive oil, minced garlic, dried oregano, and the remaining salt and pepper.
Serve immediately topped with the grated parmesan cheese and fresh parsley.