Chop the green beans into small pieces and set aside.
Press the sauté button then add the coconut oil. Once it melts, add the mustard seeds. When the mustard seeds begin to pop, add the onion, garlic, Serrano pepper and curry leaves. Stir- fry for 1-2 minutes, then add the green beans, coconut, turmeric and salt.
Give everything a quick stir, then pour the water into the pot.
Secure the lid, close the pressure valve and cook for 1 minute at high pressure.
Open the valve to quick release any remaining pressure.
Stir everything together until well combined. If there’s any water remaining in the pot, press sauté to boil it off.