Preheat your oven to 400°F (200°C).

Peel and chop the sweet potatoes. Place them in a large baking dish and toss with 2 tablespoons olive oil, 1/2 teaspoon garlic powder, 1/2 teaspoon rosemary, salt, and pepper.

Bake in the preheated oven for 30 minutes.

While the sweet potatoes are baking, heat a skillet over medium heat. Add 1 tablespoon olive oil and brown the ground turkey, seasoning with 1 teaspoon garlic powder, 1/2 teaspoon rosemary, salt, and pepper.

Chop the zucchinis by slicing and quartering the slices.

Remove sweet potatoes from the oven, add cooked ground turkey and chopped zucchinis, and mix well.

Return the dish to the oven and bake for another 10 minutes.

Drizzle with remaining 2 tablespoons olive oil, mix, and top with shredded parmesan cheese.

Bake for another 10 minutes until cheese is bubbly and golden brown.

Let cool slightly before serving.