01 - Soak wooden skewers in water for at least 20 minutes to prevent burning during grilling.
02 - In a small bowl, whisk together the melted butter, minced garlic, chopped parsley, salt, and black pepper until well combined.
03 - Thread zucchini rounds and red bell pepper pieces alternately onto the skewers, distributing them evenly.
04 - Generously brush the skewered vegetables with the garlic butter mixture, reserving a portion for basting during cooking.
05 - Preheat an outdoor grill or grill pan to medium-high heat, approximately 400°F.
06 - Place skewers on the grill and cook for 3 to 5 minutes per side until tender with light char marks, brushing occasionally with the remaining garlic butter.
07 - Transfer skewers to a platter and serve immediately, garnished with fresh parsley and a squeeze of lemon if desired.