Forcing the things you like upon other people will be met with varied success. But, then and again, it is your day, and you should hold it how you want it But, even still, you have made somewhat of an obligation to properly feed the people who have gathered together to celebrate you, though there will be wildly different opinions of what “properly” is, and there's nothing worse than being left hungry at a wedding due to a lack of food. Still, you can imagine it would be wildly inappropriate