Preheat the oven to 400°F (200°C).

Wash and slice the zucchini into rounds.

In a mixing bowl, combine the mozzarella cheese, Parmesan cheese, oregano, garlic powder, salt, and black pepper.

Place the sliced zucchini on a baking sheet in a single layer.

Drizzle with olive oil and sprinkle the cheese mixture evenly over the zucchini.

Bake in the preheated oven for 20-25 minutes, or until the zucchini is tender and the cheese is golden brown.

Remove from the oven and let cool for a few minutes before serving.