I don't understand. How does food dictate your events?
We have many feasts, or blots, in my language. It is not so much the food we have, but the purpose behind it. We eat what is in season for that time, true, but I believe things like roast pork, fruits, vegetables...they would always be there.
That being said, we would never sacrifice a horse for Haust . That's something only done for Volsi .