Is there anything so disconcerting to BBQ hosts as the vegetarian guest? If they won’t eat burgers, hot dogs or grilled chicken, what will they eat?
Here is my advice: if you have vegetarian guests at your BBQ, grill some vegetables (especially mushrooms, red pepper and eggplant).
Plate the grilled vegetables and refrigerate until shortly before serving time. Let your vegetarian guests make a burger or wrap with the vegetables, with some sliced fresh vegetables (such as tomato, avocado and lettuce) and some interesting condiments. The above burger was made with mushroom layered with avocado, tomato and herb mayo. The below burger: grilled mushrooms, red pepper and eggplant, on a bun spread with guacamole and drizzle with a sushi-style spicy mayo.
Pragmatic Attic 