More info needed Lynn.
Are you just thinking of cold or hot too?
How much freezer and fridge space do you have (although in November a garage would be fine for storage overnight)
Is it at home (lot of people) or in a hired hall, if so what equipment is there?
What time of day is the event, lunch, afternoon, evening?
Will you be doing all the work yourself or have helpers?
To start with though, I would go for a selection of roast meats. Turkey, ham, beef, lamb, pork. (which can be cooked, carved, frozen then defrosted)
A selection of fish (this would need to be done the day before or on the morning) A whole salmon or two, king prawns, lobster, smoked salmon.
A selection of paté, such as chicken liver, pork, mushroom, vegetable and maybe a couple of terrines. These can normally be kept in the fridge for a few days.
A few quiches. Ham, cheese and onion, mushroom, vegetable. All can be frozen.
A selection of pastries, pork pies, pasties, sausage rolls etc, all of which normally have good use by dates if you check. (scotch eggs too)
Vol au Vents, always go down well. With condensed chicken or mushroom soup. Or fillings of your own with egg mayo, cream cheese etc topped with something colourful like half an olive, a slice of red pepper that sort of thing.
A selection of cheeses, maybe lots of those little individual ones plus a few large ones. With crusty bread, crackers and lots of pickles.
Salads would have to be done on the day of course but there are loads you could think of.
Sandwiches of course, but depends on how much time you have.
Those are a few cold ideas. Let us know if you need more.