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 zest, lemon juice, cracked black pepper, sea salt, and garlic powder until evenly coated.
03 - Spread the seasoned zucchini in a single layer on the prepared baking sheet, avoiding overlap for even roasting.
04 - Sprinkle grated Parmesan cheese evenly over each zucchini round.
05 - Roast for 18 to 20 minutes until zucchini is tender and cheese is melted with a light golden crust.
06 - Transfer to a serving platter, garnish with fresh chopped parsley, and serve immediately while hot.