This seafood donburi has sea grapes (Caulerpa lentillifera).
Their texture is like bubble wrap.
I love them.
And soups like A-sa soup, which has sea lettuce, and Abasa soup which has burrfishes, are also good.
I ate at Makishi Kousetsu Ichiba in Naha city.
It is a interesting place to look around the shopping area.