These rolls, which are a delightful play on the traditional lobster roll, are quite substantial, so one per person is plenty. Cooked shrimp or lump crab is a fine alternative to lobster. Recipe from "Best Holiday Hors d'Oeuvres Best Recipes of 2007" from F&W Magazine, Grace Parisi, December 2007. This is another make ahead recipe, even though it doesn't take too long to prepare.