Second take a pan add 2 tabs oil or ghee, the oil is heat add musturd seed, cumin seeds, curry leaves, saute it. Then add onion again saute it 1 mint. Then onion turns golden brown colour. Add green chilly, tomato and add half tsp salt saute it well and close it with lid in medium flame for 3 mints. Then open the lid. The tomato will smash very soft. Then saute it for 1 mint.