You will need a minimum of ingredients.
The consumption of products is very conditional, you can spread the cheese very slightly, and put a lot of ginger.
You can do the opposite - a thick layer of cheese and two or three slices of ginger.
I like the taste of pickled ginger, so I suggest the option in which ratio I do-and it is very delicious!
Soft melted cheese can be taken with any filling - with ham or mushrooms, I have a classic.
Instead of green onions, you can add dill or coriander, whichever greens you prefer.