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