Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into bite-sized cubes and slice the zucchini into half-inch thick rounds.
Rinse and drain the chickpeas, then pat them thoroughly dry with a paper towel to ensure they crisp up in the oven.
In a large mixing bowl, combine the chicken, zucchini, and chickpeas with the olive oil, oregano, garlic powder, sea salt, and black pepper.
Toss everything together until well-coated, then spread the mixture in a single layer on the prepared baking sheet.
Roast for 20 to 25 minutes, or until the chicken is cooked through and the zucchini is tender with caramelized edges.
Remove from the oven and garnish with freshly chopped parsley and a bright squeeze of lemon juice before serving.