Drain pineapple, reserving 2 tablespoons juice. In a large bowl, combine the pineapple, turkey, celery, raisins and onion. In a small bowl, combine the mayonnaise, mustard, curry, salt, pepper and reserved pineapple juice. Stir into turkey mixture.
Cover and refrigerate until serving. Spoon onto lettuce leaves and top with grapes and almonds.