Re: food plot in missouri?
welcome to RT forums.
As far as a year round your best bet would be a nice perennial blend of different clovers, trefoil, and chicory. However--they do require mowing couple times of year and occasional fertilization. Proper soil prep is also a majory key to longevity.
If you want something easy and you have enough area to plant then a nice mix of warm and cool season annuals is the way to go. You could spend a weekend planting your warm season plots in mid-april and then another weekend planting your cool season plot in late August.
Spring I'd plant a mix of cowpeas, soybeans, millet, milo, and forage sorghum.
Fall I'd plant a mix of wheat, rye, oats, brassicas, and austrian winter peas.
good luck
todd