A lot of versions use turmeric to get that yellow color, I like saffron for the flavor, with maybe a little bit of tumeric. Goya Sazon seasoning has turmeric in it (and MSG, among other things) and its commonly used to make arroz con pollo. I happen to like this stuff but your mileage may vary. Sazón Goya Goya Web Site -- Arroz con Pollo - Chicken & Rice At the end of the day its good chicken stock plus onion and bell pepper and garlic which is going to make the dish, and a well seasoned chicken. Some versions, such as from parts of Puerto Rico, they add tomato as well, making it a dish similar to Jambalaya.