Suvai, Kongu payir kootu is very simple:

Cook together pachai payar(green moong) + one veg(beans, brinjal,chow chow etc) with lil turmeric and asafoetida. remove the vegs n mash the dhal.

Grind- coconut,cumin n g.chillies.

heat ghee. Splutter mustard, jeera.
Add chpped onion n fry till transparent.
Add the paste and fry a bit.
Add the dhal and vegs, water,salt and cook for 5 mins.
Done.
Serve with rice n ghee.
Goes well with chapathi, dosai too...

Variation: u can add fresh motchai along with the g. gram.