Lo bak go - turnip cake or radish cake in English - is ... Lunar New Year's cake (nin go in Cantonese and niangao in Mandarin), radish cakes have always been enjoyed all year round in Hong Kong.
There are a lot of worthwhile options across the city, many of which are massive Cantonese banquet halls where you can supplement your taro dumplings and turnip cakes with family-style dishes.