You can get an idea my experiences in 2007 from this post or this one or 2006 or 2005 You'll notice that most of the dishes in the menu are repeated. That's because my family would riot otherwise. The Yom Kippur Break Fast might look like here or here, if you're interested.
This year, now that we're living in Halifax, I won't be doing all the cooking and hosting. It looks like Rosh Hashanah is taken and I probably will be doing the meal before the Yom Kippur fast with Joanna's mother-in-law doing the Break Fast. But we're still talking.
That said, I already have the main course planned...
Since one doesn't eat or drink from the end of dinner, served before sundown on the eve of Yom Kippur, until sundown the next day, the meal needs to be substantial but not overly seasoned to leave you thirsty. Typically for these holidays, we usually forgo spicy dishes and focus on sweet...symbolic for a sweet year ahead.
I haven't decided on a first course, probably a soup - but not Chicken Soup with Matzo Balls which we will have eaten at least twice during Rosh Hashanah. And dessert will be fresh fruit, probably my favorite Fruit Salad with Lavendar Honey and either the awesome Tunisian Date Cake I made last year or the Tunisian Honey Cake in The Ethnic Paris Cookbook. Then again, perhaps I should I just do my traditional...spread all my Jewish cookbooks out and pick something entirely new. Decisions, decisions, decisions.
So what's your ritual before a major holiday?