Grind the coconut in the food processor so it is very fine. Return the beef to the pot with the water and coconut. Bring to a boil and then simmer covered 1 1/2-2 hours. If using a pressure cooker bring it to pressure and cook for 25 minutes.
1/4 cup unsweetened dried coconut, 2 cup water
When the beef is cooked remove the lid, and stir in the spinach and tomato paste. Cook for 5 minutes and serve over rice.