Preheat your oven to 375°F and lightly grease a small oven-safe baking dish with a drop of olive oil.
Bring a pot of salted water to a boil and cook the chickpea penne for 2 minutes less than the package instructions so it remains firm, then drain.
Heat the olive oil in a skillet over medium heat and sauté the minced garlic and cubed chicken breast until the chicken is browned and cooked through.
In a large mixing bowl, combine the par-cooked pasta, sautéed chicken, baby spinach, marinara sauce, sea salt, black pepper, and dried oregano.
Stir the mixture until the spinach begins to wilt slightly from the heat of the pasta and chicken.
Transfer the pasta mixture into the prepared baking dish and spread it out evenly.
Sprinkle the shredded mozzarella and grated parmesan cheese over the top.
Place the dish in the oven and bake for 15 minutes, or until the cheese is melted and starts to turn golden brown.
Remove from the oven and let it sit for 2 minutes before serving to allow the sauce to set.