Spicy Slow-Cooked Green Beans

In a large enameled cast-iron casserole, heat the olive oil. Add the onion, tabil and paprika and cook over low heat, stirring, until fragrant, about 4 minutes. Add the parsley, spinach, green beans and 1/2 teaspoon salt. Cover and cook over low heat, stirring once or twice, until the green beans start to soften, about 15 minutes. Add 1 cup of water, cover and cook for 20 minutes. Add the remaining 1 cup of water, cover and simmer until the beans are very tender, about 20 minutes longer. Season with salt and serve