add mustard seeds ,when mustard starts splutter add curry leaves and chopped shallots. saute few minutes. the shallots should have softness in them.dont make the shallots crisp or browned.
add crushed chilies, saute for a minute.
add green chilies and saute for few seconds.
now add chopped mushrooms and salt .stir well.
cover the pan with a lid. cook in a low flame for 5 minutes.
remove the lid stir well .you can see mushrooms shrinks in size and leave water
continue to cook till all the water has evaporated and you can see oil in it.
cover the lid and cook for one minute in a low flame.
switch off the stove and serve hot.
Recipe Notes
No need to add water .mushroom itself watery.mustard seeds and curry leaves are not compulsory.