Prepare the filling by sautéing the cabbage, garlic, and green onions.
Add cooked noodles and soy sauce, mix well.
If desired, stir in cornstarch to bind the mixture.
Let the filling cool down slightly before assembling the buns.
Take a spoonful of filling and place it in the center of a dough circle, folding to create the bun.
Heat oil in a frying pan over medium-high heat.
Carefully add the buns to the hot oil, frying in batches.
Drain cooked buns on paper towels before serving.