Rarely do I cook lentils without adding vegetables, but these split mung beans taste really good just the way they are, without embellishments. The traditional way to prepare split mung beans is to toast them to a golden brown before cooking them in water. Kacha means raw, i.e. not toasted. I generally put lentils on the boil first, before cooking a side of vegetables or the main meat/fish/seafood dish, so that by the time the rest of dinner is ready, the lentils are done and simply need to be tempered.
There isn't a simpler way to cook lentils than what I made today.