What is a popular kenyan dish?

Answer 1

This is a first hand answer, back home here in Kenya, there is a general consensus on Ugali being the general staple starch, that is accompanied by either fried vegetables, i.e Sukuma Wiki, or cabbages with or without fried eggs. This applies mostly to the middle and lower class citizens.
For the more effluent groups of Kenyans with the means to spend, a common meal would entail the previous said Ugali with Sukuma Wiki served with fried meat stew or curry.