I've only ever done BBQs for meat eaters, but have a couple of vegetarian guests in a couple of weeks. So far am thinking sweetcorn on the cob; butternut squash parcels; and vegetable kebabs (mushrooms/onions/peppers/courgettes). Sounds a bit boring tho so would appreciate some ideas. Also, I have bought some foil BBQ trays to keep the vegetarian food off the surface meat has been cooked on. But I've never used them - do they work?