Last year, we had fish and chips for lunch at the seaside on Christmas Eve, and I think I want to try and make that something we do every year when we can, as it meant DS could burn off some energy and he loves the beach.
Christmas Eve we usually have takeaway curry for tea with my parents, DSis and DBIL. Although we didn't manage it last year as we started with the norovirus after getting back from the seaside.
Boxing Day used to mean leftover turkey and proper chips made in the chip pan (it only comes out Boxing Day and Good Friday). Then off to the pub.
Now DS is a bit older, we spend Boxing Day at home playing with his presents, and so I bought a ham and cooked it in the slow cooker for lunch, and we had leftover turkey, ham, cheese and pickle sandwiches on naice bread, and then for tea I bought buffet nibbles. Think I'll do this again for me, DH and DMIL, but DS didn't really bother with the buffet food so he'll probably get a proper meal.
Our nearest Booths is 1.5 hours away, so we won't be getting anything from there. Looking at the reviews on christmasuk.org, the Aldi and Iceland stuff was really well received. I usually get all the catalogues, work out what looks good and then make a list of X and Y from Iceland, Z from Aldi etc
It's one of my favourite lists. Then I list what I've got, what temperature it cooks at, and how long it takes, so I can coordinate it all going into the oven. I do it in my bullet journal, and then decorate it 
but it makes me happy, so, meh.