I just wanted to add about the lounge food in Beijing. They do have set times for lunch that ends at about 1:30 PM. And then dinner begins I believe around 5 or 5:30 PM.

However they do have several hot items you can order all day like wonton noodle soup and several other noodle items but you have to ask. There’s no menu or advertising of this. Also the cooks mostly speak mandarin, so I had to ask a lounge attendant for help to place an order.