Soylent Green! Solylent Green! I wouldn't be surprised if they recycled their own people. Seriously though, I'm not surprised that they solved that so quickly, given how inconsistent the show has been. But a good writer should have taken the opportunity to run with it and make it one of the major plot threads running throughout the season, with them facing the reality of food shortage. For a show supposedly about survival, there doesn't seem to be much of that going on.