Cook the rice according to the instructions on the packet.
Meanwhile, coarsely chop the onion and garlic and cut the bell pepper into small pieces.
Fry the peppers in a saucepan with butter, after about 3 minutes also add the onion and garlic. Cook until translucent for a few minutes while stirring. Deglaze with crème fraiche, add a little water or stock, stir until smooth.
Then add the spinach and stir occasionally. Cook over medium heat for about 20 minutes. Season to taste with salt, pepper, nutmeg and turmeric.