To prepare this delicious dish, wash the green beans and chop them in a bowl. Then, heat oil in a pan over medium flame and add mustard seeds to it and let them splutter.
Then, add curry leaves along with urad dal in the pan, and cook for a minute.
Now, add the chopped beans and red chillies in the pan and cover the pan with a lid. Let the beans cook for about 5-7 minutes.
Once the beans are cooked, turn off the flame and remove the pan from it. Add salt as per your taste and mix well.