01 - Preheat your 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 well.
03 - Thread the zucchini rounds onto skewers, leaving a little space between each piece for even cooking.
04 - Brush the zucchini generously with the garlic butter mixture on all sides.
05 - Place the skewers on the grill and cook for 4–5 minutes per side, turning once, until the zucchini is tender and has light grill marks. Brush with additional garlic butter during grilling for extra flavor.
06 - Remove from the grill and, if desired, sprinkle with grated Parmesan cheese and extra parsley before serving.