Place steamer basket in Instant Pot and add 1 cup water. Using a fork, puncture the potatoes about four times and place the sweet potatoes on top of the steamer basket. Cover and check to be sure the vent is set in the "sealed" position.
Press the "steam" button and set the time for 15 minutes. The Instant Pot will begin to preheat. Once ready, the Instant Pot will begin cooking the potatoes for the designated time.
When time is completed, wait 5 minutes and then carefully vent the instant pot and remove lid. Cut each sweet potato in half and top each half with coconut butter and top with filling.
For the Filling
On a medium skillet, heat olive oil on medium heat. Once hot, add spinach and cook just until the spinach is wilted. Add walnuts and raisins and lightly cook for about 2 minutes, or until the walnuts are lightly toasted. Spoon on top of baked sweet potatoes. Serve and enjoy!