Heat your oven to 425°F (220°C) and prepare a baking sheet by lining it with parchment paper.
Cut the zucchinis into uniform 1/4-inch slices to ensure even cooking.
In a mixing bowl, combine the zucchini slices with olive oil, freshly grated parmesan, garlic powder, Italian seasoning, salt, and pepper, tossing well to coat every piece.
Place the zucchini rounds in a single layer on the baking sheet, making sure they don’t overlap.
Bake the zucchini for about 18 to 20 minutes until they turn golden and develop crisp edges.
For an extra crunch, you can broil them for an additional 1 to 2 minutes, watching carefully.
Serve the warm zucchini immediately, garnished with chopped parsley or lemon zest and an extra sprinkle of parmesan if desired.