01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper and set aside.
02 - In a large bowl, toss the zucchini rounds with olive oil, lemon juice, lemon zest, sea salt, and cracked black pepper until every slice is evenly coated.
03 - Lay the seasoned zucchini slices in a single layer on the prepared baking sheet, ensuring they do not overlap for even roasting.
04 - Sprinkle the freshly grated Parmesan cheese evenly over each zucchini round.
05 - Bake for 15 to 18 minutes, or until the zucchini is fork-tender and the Parmesan is melted, golden, and bubbling.
06 - Transfer the zucchini to a serving platter and garnish with chopped fresh parsley if desired. Serve immediately while hot.