My wife and I do Xmas Eve for both our families. We usually throw out a spread of the following:
Baked Ziti & Meatballs
Sausage, Peppers & Onions
Tray of 100 Chicken Tenders (Catered)
Sub Tray - Ham/Salami/Prov - Roast Beef & Prov - Turkey/Ham/Prov (Catered)
Stuffed Mushrooms
Fruit & Veggie Tray (Catered)
Deviled Eggs
All kinds of chips/dips
Just about every baked good you can think of (my wife goes batshit crazy with baking that whole week)
As far as Xmas Day, we usually get up late and munch on leftovers in the morning, then head to my in-laws for a Ham/Lasagne dinner.