What's inside a school lunch burger (and a lot of processed veggie burgers)?

Here's an interesting this video from NPR about the unnecessarily long list of ingredients in a school lunch burger. The food scientist in the video argues that children who don't have three balanced meals a day need the extra ingredients in the burger. But I don't think anyone needs thiamine mononitrate, disodium inosinate, and pyridoxine hydrochloride added to their food. Most or all nutrients our bodies need can be found by eating whole, unprocessed foods.