Chop the onion, red pepper and garlic.
Heat the oil in a large, heavy-based casserole dish. Add the onion and garlic and gently sauté for 5 minutes until soft. Add the paprika and turmeric, stir for 30 seconds, then add the tomato purée and coat.
Add a cup of water or stock, and season with salt and pepper. Cook over high heat for 5 minutes. Add the seafood, bring to the boil, then add your chosen green vegetables. Cook for another 5 minutes or so - the sauce should be thick and silky. Stir in the rice and the chopped parsley. Warm through and serve.