Cook pumpkin after adding enough water and salt. Cook red oriental beans separately and mix it along with the pumpkin. Grind the ingredients to be ground coarsely. Add it to the pumpkin, boil for sometime and keep aside.
Heat oil in a pan, season mustard, curry leaves and dry chillies and add the thick coconut milk. Pour it to the cooked pumpkin curry & mix well. Tasty erissery is ready to be served.