Preheat your oven to 400°F (200°C) and line a large baking sheet with foil.

In a small bowl, combine olive oil, garlic powder, and minced garlic. Stir well.

Slice the zucchini crosswise to create accordion-style cuts without slicing all the way through.

Generously brush the zucchini with the garlic olive oil mixture.

Roast the zucchini in the preheated oven for about 15 minutes until tender.

Stuff each cut with thin shavings of Parmesan cheese, then sprinkle with shredded Parmesan cheese.

Switch to broil and broil for about 5 minutes until the cheese is bubbling and golden brown.

Remove from oven, let cool slightly, and serve hot.