Tomato Gojju (Kothsu or Gothsu) - Yummy side dish recipe

Whenever I make Idly or Dosa or Pongal, I end up making up either Tomato Gojju or Kathrikai Gojju, which goes well with any of the tiffin items.

Ingredients:
Tomatoes - 2 ripe (chopped finely)
Onions - 2 big (chopped finely)
Green Chilly - 1 no.
Sambar Powder - 1/2 tsp
Oil - 3 to 4 tbsp
Moong Dal - 1/4 cup
Mustard Seeds - 1/2 tsp
Bengal gram - 1 tsp
Turmeric Powder - 1 pinch
Asafodeita - 1 pinch
Curry Leaves - a few
Coriander leaves - 1/4 cup finely chopped for decoration

Method: 
Pressure cook moong dal and keep it separately.

In a pan heat oil and add mustard seeds to it when it splutters add bengal gram, turmeric powder and hing to it. Whe the Bengal gram turns golden, add onions and when they turn glassy add the tomatoes to it. Saute everything till the tomatoes become soft. Add 2 cups of water and cooked moong dal. Add salt and let everything boil. When all blend well remove from flame and add curry leaves and coriander leaves to it.