My latest craze is making grilled vegetables using metal skewers we bought at the JOBLOT end of summer clearance a few years ago. We use hardwood charcoal on our Weber grill.
I chopped the veggies into skewer sizes pieces (2") Spanish onion, bell peppers, and leave the baby bella mushrooms whole. I dried the mushrooms with paper towel. Then I put all of the veggies in a large plastic bucket with a lid and shake it.
I made a marinade using olive oil and wine vinegar and dried oregano Adobo and salt. I whisk it until emulsified and let it all marinate for at least an hour.
After they have marinated I skewer the veggies and place them on the fire. Check and rotate often. They cook fast.
Make a lot because they taste even better the next day on sandwiches.
3 green bell peppers, 3-4 red bell peppers, 2 - 1 pound boxes of baby bella, pick the largest ones!
Spanish onion (the huge white ones) or big red onions.