What is in school lunch meat?

As a vegetarian, i would like to know how most schools prepare their beef, pork, and poultry. Is it even meat? Because one of my teachers told me it was soy, or a combination of the three. Oh, oh! And that nasty *** Oscar Meyer's preformed bologna. What is bologna? Is it the leftovers or something that they scrape from the slaughterhouse floor? I know this is a lot of questions, but I will be ever grateful if any one person answers just one question. :)