The meal you have in mind does not sound too over the top to me, at least. Just try to find sausage and bacon without sugar added, good quality meat (preferably local), and make your own stuffing. I found a millet sandwich bread at my local health food store that I used to make stuffing with and it was absolutely delicious. If you can’t find bread in the store you can always make your own loaf and turn it into stuffing (i just opted for the easier option). For the Yorkshire pudding just use acceptable flours (I tend to favor the almond/coconut/teff, or almond/buckwheat/teff combination), and use water (or coconut milk, yogurt, or kefir) instead of milk. As for the potatoes, I would just make mashed cauliflower and turnip/rutabaga instead.
I have tried coconut sugar a few times now and have had milk reactions to it (fatigue, irritability because of the fatigue), but it’s way better than normal sugar, and it is delicious. I did just find out about a new type of sweetener, YACON SYRUP…. which I just ordered, so all I can tell you is I have heard great things about it and it has a very low glycemic index.
coconut palm sugar 35
yacon syrup 1
I don’t think one meal will set you back more than a week, but it might not be worth the struggle you’ll go through afterwards, or the guilt (if you have any; I try not to feel bad when I make exceptions. You gotta do what you gotta do..)
You should read this post on a different candida forum about feeding yourself during the holidays. This other forum (the Whole Approach) has some different takes on foods you can and cannot eat, which you might be interested in.
Hope this long response is helpful. Happy Holidays!