Growing up we always had a Swedish smorgasbord for Christmas Eve, followed by a dessert buffet after Christmas Eve service and opening of tree presents. We'd have potato sausage, boiled potatoes with white sauce, pickled herring, pickled cucumbers, Swedish brown beans, a special Swedish cheese, rye and Christmas breads, cheeses, and my mom's green jello salad (obviously not Swedish!!). I try to do the same, and we have for a while, but since I can't eat meat anymore we don't make the sausage and substitute Swedish meatballs (this year I bought frozen ones from ikea. Bad me). I also won't do the brown beans and jello salad.
Christmas Day we spend with my in-laws, so it's whatever they feel like fixing to eat, and that's fine with me! Since they moved into a retirement community we eat in the dining room (amazing food!) and they'll have a huge buffet to graze from. Gotta love it!