Preheat the Oven: Preheat your oven to 200°C (400°F). Line a baking tray with parchment paper.
Prepare the Courgettes: Wash and dry the courgettes. Cut them into even batons or rounds to ensure uniform cooking.
Season & Coat: In a mixing bowl, toss the courgettes with olive oil, salt, black pepper, and chilli flakes (if using). Ensure they are evenly coated.
Arrange on Baking Tray: Spread the courgettes in a single layer on the prepared baking tray, ensuring they are not overcrowded.
Roast the Courgettes: Place in the oven and roast for 15-20 minutes, flipping halfway through, until golden and tender.
Final Touches: Remove from the oven and sprinkle with fresh herbs and lemon zest. Optionally, add Parmesan shavings for extra flavour.
Serve & Enjoy: Serve immediately as a side dish or mix into salads and pasta.