Not even good ones. No sauce for it, no nothing. If it's a buffet, you'll have better luck. But the generally accepted practice is to call ahead. If it's catered, then there really is no reason they can't call the caterer and tell them they have someone with a special diet.
Many people think chicken broth, and fish, and gelatin, are acceptable.
If they seem hesitant about this, offer to call the caterer yourself and explain. Find out if it will be fondant icing on the cake. Otherwise, arrange to eat something before you go. And don't back down at the event. If they once see you eating meat, they will forever assume you'll eat meat in their presence.