Preheat oven to 375°F.

Cook penne pasta according to package instructions and drain.

In a pan, heat olive oil and sauté zucchini until tender.

In a large bowl, combine cooked pasta, sautéed zucchini, cherry tomatoes, tomato sauce, salt, and black pepper.

Transfer mixture to a baking dish.

Sprinkle shredded cheese evenly over the top.

Bake for 25 to 30 minutes until cheese is melted and golden.

Remove from oven and sprinkle parsley before serving.