You should check out the industrial-scale cockroach farming going on in China. Mostly hermetically sealed buildings; you can put them in cold places, you pump food waste in one side, and get sterile, protein-rich cockroach out the other side.

No comment on the taste, but you can do similar things for a variety of non-cockroach insects that may have different taste / texture / emotional connections.

If someone makes a tasty product, I'll give it a shot. Until then, I am waiting for the vat-grown beef.