This is not a recipe but more of a methods page for bbq-ing a variety of yummy veggies. If you have another favourite, let me know and I will add it to this page.
Forget the meat! Searing meat on a bbq is toxic anyway. Try these yummy vegetables instead. We have a tiny Weber Q100 BBQ that we use on high but if you have a a big bbq, medium will probably be high enough.
Beets
So easy! Cut off the tops (you can eat those greens like spinach or chard), trim the root, give the skin a quick wash and place on a the grill. No need to peel. The size of the beet will determine the amount of time it will take to cook. As the outside blackens and blisters, turn the beet to cook all the way around. It's cooked when a skewer goes through. You can peel them while they are hot or let them cool, leave in the fridge overnight, and then peel them even more easily. They are sugary sweet!
Asparagus

If you ever have leftover grilled asparagus, check out my corn soup which will be posted soon!
Yams
We ate giant yams in China that were cooked inside oil drums filled with coals. These you can do like potatoes on the grill - just leave on the grill and turn as the skin goes black and blistered. Just like the beets!
Eggplant Version 1
If you are making something like Baba Ganouj (an eggplant dip) or an Indian roasted eggplant dish, you just buy a big eggplant and put it on the bbq to blacken and blister (like the beets again!). The eggplant will swell and burst as it cooks and will need to be gently lifted onto a plate or else it'll just ooze a mushy mess onto your grill.

Eggplant Version 2, Zucchini, Pattypan Squash
Cut the veggies in half and toss them in olive oil, salt and pepper. Place on the grill cut side down and leave to grill until soft for the eggplant and al-dente for the summer squashes. You can flip them if you want but I don't always do the flip.
Onions
Peel but don't cut the ends off. Cut the whole onion into 4 pieces. Toss in olive oil, salt and pepper and grill on all three sides. If you do cut the ends off, just put on a skewer to grill or else the pieces will fall apart.
Tomatoes, Green Onions, Mushrooms
Yuck. Hot tomatoes. Why waste them? Eat them raw. Green Onions are just as yucky bbq-ed as they are raw but Corey really likes them. Toss in olive oil and salt and grill whole. Same goes for mushrooms. These will shrivel and become even worse tasting as they cook.
Portobello Mushrooms
These are my yummy exceptions to the yucky brown mushroom rule (they are, after all, just overgrown brown mushrooms.) Remove the stem and scrape out the gills under the cap. You can grill these whole and eat them like a burger or you can slice them. They marinate beautifully and take well to bbq sauce while you are grilling them. If you can press them will a panini cast iron press that you've heated up, that makes them even fleshier.

Take a whole head of garlic. Cut off the top to expose the cloves. Place on a piece of foil. Drizzle olive oil over the top into the cloves, sprinkle in coarse salt and pepper. Bring up the sides of the foil and twist it together like a Hershey Kiss. Place on the grill for 30-45 minutes on low to medium. If the grill is too hot the bottom will burn.
So there you go! You can add sauces, marinades, fresh herbs or flavoured salts to your veggies before or during the grilling time to play with the flavour. You don't need a bbq wok or veggie cage like you see at the local stores, nor do you need to wrap anything in foil except the garlic.