Heat the oven to 400.
Bake a Chinese yellow yam or any yam of choice for 60 minutes.
Prepare the fish by placing it in a baking dish and season with salt, black pepper, mushroom seasoning, oil and wine.
A few minutes before the potato is cooked, add the fish to the oven and bake for 12 minutes.
Reheat any leftover greens. Then remove the baked potato and slice it down the center.
Add the butter and leftover greens to the potato.
Remove the fish from the oven, plate along with the potato and enjoy!