Sausages are a ground mix of meats.
Is there an equivalent for a mix of vegetables, fruits, grains, meat, etc? It would make more sense as a complete cheap meal than a powder, except for being perishable.
It brings to mind the 'diet problem' http://www.neos-guide.org/content/diet-problem for which, if optimizing for price only, often suggests that you eat mainly potatoes.