Place your pre boiled and peeled sweet potatoes and pre boiled yellow beans in a cooking pot/sufuria.
Add a cup full of water and let simmer till everything has heated up
Remove from heat and drain the remaining water if any and set aside.
Mash till smooth or to your desired texture/consistency. You can add the drained water as desired. Season with salt and pepper
Add in the chopped chives then serve while hot with some sautéed cabbage or any other vegetables of your choice.