Preheat your oven to 400°F (200°C).
Wash the zucchinis and slice them in half lengthwise.
Place the zucchini halves on a baking sheet, cut side up.
Drizzle olive oil over the zucchinis.
Sprinkle garlic powder, salt, and black pepper evenly.
Top with grated Parmesan cheese and dried oregano.
Bake in the preheated oven for 20-25 minutes until tender.
Check for doneness; they should be lightly browned on top.
Remove from the oven and let cool for a few minutes.
Garnish with fresh thyme before serving.