Cook the veggies with some salt and water till done. Ensure that they are cooked just right – neither crunchy nor too mushy.
For the masala, grind all the ingredients mentioned under masala to a smooth paste adding some water.
Heat oil in a kadai or pan.Temper with mustard seeds and urad dal .When they splutter add broken red chillies,curry leaves and haldi.Add finely chopped onion .Fry till translucent.Add chopped tomatoes. Fry till mushy.
Add cooked veggies and masala paste.Add salt and water.Mix well and allow it to boil well .
When it boils,it thickens a bit. If requied add some more water to get the desired consistency. Switch off. Add chopped coriander leaves and squeeze lemon juice.
Serve hot hot saagu with poori,chapathi,dosa,rava idly or even rice.
In case you don’t have all the garam masala ingredients mentioned under masala , you can manage with cinnamon,cloves and elaichi. Later add some garam masala powder.
If you want more rich ,you can add some cashew while grinding