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 - Spread the seasoned zucchini in a single layer on the prepared baking sheet, ensuring none overlap.
04 - Sprinkle freshly grated Parmesan cheese evenly over each zucchini round.
05 - Bake for 15-18 minutes until the zucchini is fork-tender and the Parmesan is golden and bubbly.
06 - Transfer to a serving platter, garnish with chopped fresh parsley if desired, and serve immediately.