I actually have some Christmas eve food traditions. Potato salad with homemade mayonaise, Frankfurters, and Celery root salad.
The first time I went in search of celery root, the clerk in the store looked at me as if I had just asked him about a 3-legged chicken. Sorry Mam, I have never heard of that, but let me get the produce manager. The produce manager apologized profusely because they used to carry the bulbs but nobody ever wanted them. So he went to call another store (who actually had some). While I waited this sweet young stock boy asked me what I was planning to make. "Celery Salad" He then asked me with a very serious face: "Can't you use radishes? I have lots of radishes." I cracked up.