I'd spark up the grill, but I imagine this stuff comes ready to serve.
If you think about it, the recycling of basic neutrients is nothing new. We basically drink the water that all life on earth has pissed in at one point. And plants basically take animal excrement and turn that into fruits and vegetables.
But if you don't think about it too much, all you can say is that is friggin nasty!
Yes, from a public health perspective, it does seem risky. I worked on a project here at Texas A&M that pioneered part of the process of turning fast food waste (including meat) into feed for beef cattle. Not the best idea, turns out.
I think I'll stick to the local beef and venison I normally consume.