It seems like the most immediate way to meet low-cost but high volume is through in vitro meat culture [1]. It will likely take awhile to clear the health and GMO-fear hurdles, but it's coming. Especially places where raising livestock in traditional ways drastically harms the environment (mass pig dumps in rivers, or limited land resources in island nations).

Decentralizing growth of meat and other food, as mentioned in the article, is probably a good thing too, just like decentralizing internet services or electrical generation. However, I don't completely buy the 'decentralize everything' argument that has become popular lately. While it brings us closer to the libertarian dream, some advantages are lost as well. Also, I'm not convinced the innovations that enable decentralized agricultural or electrical generation don't have the same positive impact on the centralized version of the system. Except, in the centralized system you benefit from economies of scale. We'll probably end up with some kind hybrid system.

[1] http://new-harvest.org/wp-content/uploads/2013/03/post_2012_...