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They were the three different kinds the vendors usually had in their stacks of steamers. I don't know what kind the green one was but it was my favorite. My wife was a fan of the red bean paste.

Could the green one probably be cabbage, @stacee & @time2giver ? Atleast that's what my morning Baozi here in Changde are filled with.

It probably was. I'm sure it was vegetarian. I guess I like cabbage, I'll have to try to make some when I get back home