Heat oil in a medium saucepan. Add onion, garlic and ginger and cook until soft. Add the drained rice, salt and pepper and cook for 3 to 4 minutes.
While the rice is cooking, heat the remaining tablespoon of oil in a small saute pan over medium heat. Add the cashews and cook until lightly golden brown. Drain on paper towels.
Place coconut milk and water in a medium saucepan and bring to a simmer. Add the hot liquid to the rice and bring to a boil. Reduce the heat, cover and cook for about 15 to 20 minutes. When the rice is cooked, remove from the oven and fold in the green onion, and coconut. Spoon the rice onto a platter and garnish with the toasted cashews.