How to make
Heat the olive oil and braise the onions, garlic and tomatoes for 10 min. Add the fish, saffron and broth, bring the mixture to a boil.
Turn the heat down and boil 5 min., take the fish out and boil another 35 min. Boil the spaghetti.
Mix them with the tomato sauce, add the mussels, fish and saute another 5-6 min. Season with salt and black pepper and serve.