01 - Preheat grill or grill pan to medium-high heat.
02 - In a small bowl, combine melted butter, minced garlic, parsley, lemon juice, salt, and black pepper. Mix thoroughly until well incorporated.
03 - Thread zucchini rounds onto skewers, leaving small gaps between pieces to ensure even heat distribution and cooking.
04 - Brush zucchini generously with garlic butter mixture on all sides, ensuring even coverage.
05 - Place skewers on preheated grill and cook for 4–5 minutes per side, turning once, until zucchini is tender and displays attractive grill marks. Baste with remaining garlic butter during cooking for enhanced flavor.
06 - Remove from grill and immediately sprinkle with grated Parmesan cheese and additional chopped parsley if desired. Serve warm.