Butter beans...

Aren't Pigeon Peas the proper ones to make rice and peas from    I may well be wrong 

The dhals I buy from Twongos are a mix of beans and lentils I think.  My favourites are chana and mung, although I think I also have some urad and toor lurking in the cupboard.   Channa are like yellow split peas, mung is mung beans shelled and split in half.  Not sure what the others are but urad look beany and toor look lentilly.  As well as dhal, you can make pancakes and host of other inexpensive tasty and nutritious dishes from them.

As well as the mass of fresh stuff all summer to go at, I like growing crops that feel like you are stashing away supplies for the year, hence my fixation with beans I think    In fact I have seriously limited my seed collection this year to focus on stuff that delivers, but is also great to cook with