Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Cut the chicken breast into 1-inch bite-sized cubes and slice the zucchini into half-moons.
Drain the canned chickpeas into a colander, rinse thoroughly with cold water, and pat them dry with a clean kitchen towel to ensure they crisp up in the oven.
In a large mixing bowl, whisk together the olive oil, lemon juice, lemon zest, dried oregano, garlic powder, sea salt, and black pepper.
Add the chicken cubes, dried chickpeas, and zucchini slices to the bowl, tossing everything together until every piece is well-coated in the marinade.
Spread the mixture out in a single layer on the prepared baking sheet, ensuring the pieces aren't too crowded.
Bake for 20 to 25 minutes, or until the chicken is cooked through and the chickpeas are slightly golden and crisp.
Remove from the oven and let rest for 2 minutes before serving hot.