If she is having a Chanukah party, the most important part is something fried, in the states we usually do latkes, but here people seem to get Donuts (I for one am getting my Krispy Kremes this week!)
From my own experience, there isn't much thats traditional for Chanukah, but my mother was the queen of the Roast Chicken for Shabbat dinner!! Along with something like a Potatonik, or a noodle kugel (mmmmmm) some veggies maybe...and I for pudding, well, we were too fat growing up so we didn't have pudding (issues much??) but we always seemed to have dried fruit around the house, Jews love dried fruit! But you can't beat a good Babka!
Here is a (stolen) list of what you could do...
latkes
apple sauce
cinnamon
brisket
kasha varnishkas
carrots and apricots
salad
broccoli
soup
desserts
fruit
apple cake
almond cake
babka
gelt
mmmmmmmmmm, kasha varnishkas. I might have to make some tomorrow now! Good luck to her!