Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Slice the zucchini into 1/2-inch thick rounds and cut the chicken breast into bite-sized cubes.
In a large mixing bowl, whisk together the extra virgin olive oil, minced garlic, dried oregano, sea salt, and black pepper.
Add the chicken and zucchini to the bowl, tossing thoroughly until every piece is evenly coated with the herb oil.
Spread the mixture in a single layer on the prepared baking sheet, ensuring pieces are not overcrowded to allow for proper browning.
Sprinkle the grated parmesan cheese evenly over the top of the chicken and zucchini.
Bake for 18-22 minutes, or until the chicken is cooked through and the zucchini is tender with golden edges.
Remove from the oven and garnish with freshly chopped parsley before serving warm.