This is a very earthy dish where you can really taste each of the ingredients. I have used very small carrots for this dish, only for the reason that there is a green grocer that I go to that has a great variety of vegetables, but they also have lots of undersized or misshapen ones that farmers do not sell to most commercial sellers. So instead of them going to waste I always look there first, and it is also generally cheaper.
Anothers waste, my staple
I heard a whisper of a movement towards shops selling the misshapen or undersized produce some time ago when the wastage of eggs was brought to light. I have not heard much since this. Definitely something to look for and to be encouraged when waste is something that is far too common in both producing and consuming.