Preheat the oven to 425°F and line a large baking sheet with parchment paper.
On the baking sheet, toss zucchini rounds with olive oil, garlic powder, Italian seasoning, salt, and black pepper. Arrange in a single layer, making sure they aren’t overlapping.
Roast the zucchini in the oven for 10 minutes.
Remove from the oven and sprinkle Parmesan evenly over the zucchini rounds then continue roasting for 10 more minutes, or until the cheese is golden and bubbly.
Broil for 1-2 minutes at the end if you want them extra crispy.
Transfer to a serving platter, then garnish with fresh parsley and crushed red pepper flakes. Serve warm.
Notes
Storage: Kept in an airtight container in the fridge, the zucchini will keep for up to 3 days! You can reheat it in the microwave, in the oven, or in an air fryer.