Heat oil in a pan, add mustard seeds. Once it starts to splutter add the jeera , urad dal, red chillies, asafoetida and curry leaves. Saute for 1 minute. Now add the turmeric powder and saute
Now put the cut vegetables and the dal into this. Mix well. Add around 1 cup of water and the necessary salt , close with a lid and cook on medium flame till the vegetable and the dal are well cooked. Add more water if necessary but let the dal not become mushy
Cook till all the water is absorbed. Switch off the fire. Serve warm with rice and sambhar