The recipe for cabbage and shiitake mushroom vegetarian buns is as follows:

Materials:

- Dough: 500 grams of medium gluten flour, 5 grams of dry yeast, and about 250 milliliters of warm water.

- Filling: appropriate amount of cabbage, appropriate amount of mushrooms, appropriate amount of ginger, appropriate amount of salt, appropriate amount of pepper.

Steps:

1. Wash the cabbage and mushrooms separately and chop them, and mince the ginger as well.

2. Heat the pan and cool the oil, stir fry the ginger first, then put in the cabbage and mushrooms and stir fry together, add the right amount of salt and pepper, stir fry until the water is out of the water, and then leave it to cool.

3. Add the dry yeast to the flour, slowly stir in the warm water and knead until a smooth, elastic dough forms, cover with a damp cloth and allow to rise for about 30 minutes.

4. Remove the dough from the oven, knead it into a long strip, divide it into equal sized portions, and roll it out into a round shape with a thin center and thick edges.

5. Place a small amount of filling in the center of each crust, pinch tightly, roll the whole thing out, and put it into a steamer basket to ferment for about 15 minutes.

6. Boil water in the steamer and steam for 10-15 minutes.

Tips:

1. After the dough is kneaded, let it rest for a while to let the gluten loosen up and make it easier to roll out.

2. The filling can be seasoned according to personal taste.

3. The size of the buns can be adjusted according to personal preference, and the steaming time will vary accordingly.