This is a real Mongolian barbecue preparation (NSFW)
First off, this is highly NSFW. And if you're not open to seeing other cultures prepare and consume meat in a raw, unfiltered sort of way, you should probably skip this video because some of it is very graphic.
Now that we've gotten that out of the way, here's a video showing the proper way a Mongolian BBQ is prepared. I'm talking about the slaughter of a goat, the preparation of the meat, and the re-stuffing of the body with the prepared raw meats for BBQ-ing. It's very gruesome but a real look at how this particular nomadic Northern Mongolian tribe has made food for many years.
Videos like this are why I love the internet. Where else would I have been able to see how this is done except by going to Mongolia?