Mix brown sugar, basil, salt, garlic powder, and pepper in a small bowl.

In a large bowl, drizzle oil over vegetables.

Toss well to coat.

Add seasoning mixture.

Place vegetables in a grill basket or rack, or thread onto skewers.

Grill over medium heat 10 to 12 minutes or until vegetables are tender, turning occasionally.

*If using sweet potatoes, pierce them with a fork and microwave 2 to 3 minutes on high or until tender, before grilling.*