This isn't really a recipe but I guess I will include it.
1. Wash a red pepper and green pepper and cut into 1"x1" hunks.
2. Cut a vidalia onion into hunks, I try and leave the layers together for easier and more stable skewering.
3. Place on skewers with gaps in between for proper cooking.
4. Drizzle with olive oil, salt & pepper to taste.
5. Grill on a 350 degree/ medium heat grill for about 8-10 minutes.