Tomato Chutney (Hotel style)

INGREDIENTS :
Big Onion - 3
Riped Tomato - 5
Green chilli - 4 or 5
Curry leaves - 5 or 6 sprig
Mustard seeds - 1 tspn
Cooking oil - 3 tbspn
Salt as needed

PREPARATION :
1. In a pan add oil, temper mustard seeds, add the chopped onions, green chillies and saute it.
2. Once it is half cooked add the cut tomatoes, curry leaves and saute it.

3. Once all of them is cooked switch off and allow it to cool. Then transfer it to a mixer grinder, add salt and grind them little bit coarsely. Now transfer it to a bowl.
Serve it with idli or dosa.