Vegetarians not visible for school events

One thing I've noticed over and over is that local school events which involve food almost always assume that everyone eats meat. I know that vegetarians make up a small percentage of the population, but since I'm in that percentage I notice it more when there's nothing on the menu I can eat. My wife and sons are going to a spaghetti dinner tonight at the school and the two options are meat sauce or butter. I'm not sure what kind of restaurant is providing the food, but is butter really the way most people eat spaghetti? What happened to olive oil or marinara sauce? Maybe they can bring their own or just eat it plain like we did at Astrocamp...