How about this for a good-size sandwich. And I do mean good size, maybe pig-out size.
Roast a Cornish game hen. (About.com sez "roast the hens at 375 degrees F. for about 1 hour, or until the juices run clear when a thigh is pierced with a knife and a meat thermometer registers 170 degrees F.") Strip off meat.
Halve and boil a medium potato. (uh, duh. Just until tender. Then mash with 1 T butter and 2 T cream)
Make a small loaf of plain ol' bread (I think the sticky-bun bread would work, with the sugar severely reduced and some savory - thyme, sage, rosemary - added. This doesn't take long to bake, so I guess chopped celery could be added as well. The idea here is to make the bread the equivalent of stuffing.)
Make a single serving of cranberry relish. (In the blender, chop 1/4 C washed, sorted cranberries. Peel, section and cut into chunks a tangerine, clementine or mikan. Combine oranges and cranberries, add sugar to taste.)
When the bread's baked, slit it open, butter it lightly, and stuff in meat, potatoes and relish, then eat. An all-in-one meal. People will either love it or hate it, or think it is OK. :)