Pigeon peas are a crop grown primarily in warm climates. We've just harvested our first pigeon peas, and although I haven't shelled them yet, I think we have about 1 kilogram (2.2lbs) of dried peas. They can be eaten green or dried. In India, they're one of the peas used as dahl. We've had them here as a substitute to split yellow peas for pea soup.
Pigeon peas are one of the traditional permaculture plants. They're a multi-function plant being used as human food, forage for chickens and animals, they make a good green manure and can be cut back and used as mulch. Native birds also love them.
Although they're an unusual plant, they're quite handy as they can be grown during the warm weather and when harvested, can be stored in jars in the stockpile for eating throughout the year.