01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large mixing bowl, toss zucchini slices with olive oil, lemon zest, lemon juice, cracked black pepper, sea salt, and garlic powder until evenly coated.
03 - Spread the seasoned zucchini rounds in a single layer on the prepared baking sheet, ensuring none overlap.
04 - Sprinkle grated Parmesan cheese evenly over each zucchini slice.
05 - Roast in the oven for 18–20 minutes until the zucchini is tender and the Parmesan is melted and lightly crisped.
06 - Remove from the oven, transfer to a serving platter, and garnish with chopped fresh parsley. Serve immediately while hot.