Steps
1. Preheat grill to medium-high heat.
2. Cut zucchini, bell peppers, and red onion into bite-sized pieces.
3. Thread the vegetables onto skewers, alternating between different types of vegetables.
4. In a small bowl, whisk together olive oil, minced garlic, dried oregano, salt, and pepper.
5. Brush the vegetable skewers with the olive oil mixture, making sure to coat them evenly.
6. Place the skewers on the preheated grill and cook for about 10-12 minutes, turning occasionally, until the vegetables are tender and slightly charred.
7. Remove the skewers from the grill and let them cool slightly before serving.