a scrooge christmas styled event?!?! so what you go in and are given a glass of muddy water, some gruel and a slap on the face?
Perhaps it would be better to rename the day
As for suggestions it depends on what she wants, bitty snacky food or sit down meals. A full english breakfast/roast/chicken tikka masala/fish&chips are full on meals we're likely to eat but i have a feeling she'd prefer little snacks that people can buy and walk away, slices of pork pies, sausage rolls that kind of stuff.