With a menu centring around plant-based ingredients, Treehouse has expanded its wings throughout the years so that it has outlets in some of the major spots in the country like Central Hong Kong, Taikoo Place, Quarry Bay; Airside in Kai Tak; Sharp Street East in Causeway Bay; and The Heath Mall, Tsim Sha Tsui. All the dishes available here are vegetarian. However, there are a few options like free-range organic egg and vegetarian Halloumi which you can include to spice up your meal. Vegan substitutes for these include Tempeh or Vegan cheese. Another noteworthy feature about this diner is that they do not use any plastic packaging. Instead, they employ both commercially and non-commercially compostable packaging for their goods.