Chop palak/spinach and onions. Wash palak/spinach thoroughly.
Soak toor dal for half an hour. Split green chillies.
Heat oil in a pressure cooker.
Add all the ingredients under 'For Tempering'.
Once they start spluttering add onions and green chilies.
Fry them till the onions turn translucent. Add spinach/palak to it.
Fry this for a while. Add asafetida and little water.
Add soaked toor dal/yellow pigeon peas.
Allow this to boil for 3 whistles.
Once the cooker cools down, open the lid.
Mix it once, add salt and turmeric powder.
Combine them well and allow this cook for a while.
Once the dal turn mushy and creamy turn off the flame.
Serve it with roti or rice along with raw onions.