01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss zucchini slices with olive oil, lemon juice, lemon zest, sea salt, and cracked black pepper until evenly coated.
03 - Place the seasoned zucchini rounds in a single layer on the prepared baking sheet, ensuring no overlap for even roasting.
04 - Sprinkle freshly grated Parmesan cheese evenly over each zucchini round.
05 - Bake for 15 to 18 minutes until zucchini is tender and Parmesan is golden and bubbly.
06 - Transfer to a serving plate and garnish with chopped fresh parsley if desired. Serve immediately.