A: Even if you only have one or two vegetarian friends, arrangements should be made. You wouldn't want them to try to survive on the olives from their martinis alone. At a buffet, it's easy to let guests pick and choose. For a sit-down dinner, however, you should have one vegetarian choice. Don't think of it as a meal that will only appeal to the vegetarians. A good pasta primavera, for example, will please both carnivores and herbivores. But, if you really want both your main dishes to be meat, choose a hearty pasta for the side dish. This way, it'll be available in the kitchen so the waitstaff can bring out full plates of it upon request. Give your veggie friends the heads up on this plan so they know to place their request rather than just stare at a plate of food they won't eat.