sure ^_ if its way cheaper then its probably the cheapest calories. awesome!

nshima would be worth checking out one day in future as the preparation is easy and the ingredients are cheap:

"1 lb. maize meal or corn meal
2 qt. pot
Lg. wooden spoon
Water

In pot mix 2 cups cold water with two heaping tablespoons of meal. Add hot tap water to fill pot. Cook on high heat for 5 to 10 minutes or until mix reaches the consistency of porridge. Lower heat to medium and slowly and slowly add the rest of the meal, stirring constantly. Continue stirring until mixture is very stiff. Remove from heat.

Using a wooden spoon that has been rinsed in cold water, shape and remove spoonfuls of Nshima. (If using a metal spoon, the Nshima will stick to the edges and should be rinsed off between each serving.) Serve with beef, poultry, gravy, leafy greens."
source

in zambia many people ate nshima all the time, but usually people would eat it with something like chicken and vegetables or watever other sauces cuz the texture can be a bit grainy... also nshima is a very condensed blob of calories....

upside of yam over cornmeal and rice tho is that yam doesnt need packaging

because it looks like the yam its self is already the packaging...