firstly, in a large wok heat oil. use olive oil for more healthy option.
saute garlic and ginger on high flame for a minute.
also add spring onions and continue to saute. alternatively use onions, if you do not have spring onions.
further add thinly sliced mushrooms and continue to saute till they sweat. mushrooms release water while frying, so saute for 2 minutes.
additionally add vegetables of your choice. i have added broccoli, carrot and cabbage.
add salt and saute on high flame for 2 minutes.
further add vegetable stock or water.
get the soup to boil for 10 minutes or till vegetables are partially cooked.
additionally add lettuce. do not cook lettuce too much as they will loose crunchiness.
also add pepper and mix well.
simmer for 5 minutes adjusting the desired consistency.
now add lemon juice for tanginess. however, it is optional.
finally, serve veg clear soup piping hot.