01 - Preheat oven to 425°F (220°C). 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 freshly cracked black pepper until evenly coated.
03 - Arrange the seasoned zucchini in a single layer on the prepared baking sheet, ensuring slices do not overlap.
04 - Sprinkle freshly grated Parmesan cheese evenly over each zucchini slice.
05 - Bake for 15-18 minutes until zucchini is tender and cheese is golden and bubbly. For extra crispiness, broil for an additional 1-2 minutes.
06 - Transfer to a serving plate, garnish with chopped fresh parsley if desired, and serve immediately.