Grilling in the backyard is one of the relaxing rituals of summer. It's also a way to add smoky, caramelized flavors to vegetables. Let go of all those old ideas about burgers and steaks, and start seeing your grill as a sophisticated tool for cooking plants.
Whether you use a charcoal grill or a gas one, you can harness the ancient mysteries of fire by using smoke. I like the convenience of a gas grill, and I use a smoker box to hold smoldering chips of cherry, apple and mesquite. Once the chips are smoking, they infuse your vegetables, tofu, burgers, pizzas or any other food with a meaty umami quality that really works.
The first thing you need to master when using the grill for any kind of cookery is "zone cooking."
On the gas grill, that means heating the whole grill on high until the grate is nice and hot, then reducing the heat on one side, so you have a cooler zone to move food to after you have seared it. On the charcoal grill, you just have to build the fire on one side. Most vegetables don't need really high heat. Stick to a brief time on the hot side to mark them, then move to the cool side with the lid down to cook them through.
It's hard for some cooks to wrap their minds around the idea of precooking vegetables for the grill, but once you try it, it will change how you prepare them. The grill is hot and dry, and if left to its own devices, will dehydrate certain vegetables and make them tough. As you'll see with this beet recipe, parboiling the beets makes them tender, so all you need to do is mark and caramelize them.
If you wanted to cook firm vegetables such as beets without precooking, you can wrap them in foil, or make a "hobo pack." Just tear a square of foil and put seasoned veggies inside, then crimp it closed. Put them in a cool zone, and let them slowly roast and steam in their own juices.
Another key to vegetables on the grill is oil. Toss them with oil and swab the grate with an oiled paper towel to keep the veggies from drying out or sticking.
If you are a grill purist, you may not have tried grill woks, baskets or other paraphernalia. Many of these are really helpful for veggie cooking. Instead of skewers, you can just toss oiled veggies in the wok and stir, then sauce off the heat.