Soak the moong dal for about 2 hours. This step is optional but helps the dal cook soft and easier to mash up
Add the soaked dal, cabbage, turmeric, onions, and tomatoes to a pressure cooker
Add enough water to cover it by an inch, mix well, and pressure cook for 20 mins or 4 whistles
Let the pressure subside by letting the cooker cool down
Then, heat the ghee or oil and add the cumin seeds
When they sizzle and turn brown, add the shallots or onions and the red chillies
Fry until the onions turn golden brown
Add a pinch of hing and mix well
Dunk the tempering into the dal, add salt and mix well
Serve hot with rice or roti
You can also add some curry leaves or coriander leaves as garnish