How to Make It
In a large skillet, heat the oil. Add the onion and cook over moderate heat until softened, 5 minutes. Add the potatoes and portobello and stir to coat with oil. Add the green pepper, bay leaf, paprika, crushed red pepper and water and bring to a boil.
Cook the potatoes over low heat for 10 minutes. Add the chorizo and simmer over moderately low heat until the potatoes are tender, 20 minutes. Season with salt, discard the bay leaf and serve.