When put under the grill or on the BBQ, the vegetable skewers get nice and crispy, which really changes the flavour. You can get creative and use a variety of different vegetable like some u003cstrongu003ebaby corn, red onion or aubergineu003c/strongu003e.u003cbr/u003eYou don't really want to use a root vegetable, as that would take longer to cook, so stick with softer vegetables.