Mix all of the dumpling ingredients together. The most important thing is to get rid of as much excess moisture from the kimchi, yam noodles, tofu, and bean sprouts. You don't want the filling to be wet.
Take a single dumpling wrapper and wet the edges with water. Put a teaspoon of the dumpling filling in the center of the wrapper and for inhale, gently squeezing out any air. Crimp the edges with your fingers.
This recipe makes about 100 dumplings. Arrange them on a lightly floured baking sheet, making sure that they don't touch each other. Freeze what you aren't going to immediately use for 1 hour.
Store in a freezer bag.
In a steamer, line with either parchment paper or a couple of cabbage leaves as shown.
Arrange dumplings in a single layer, making sure they don't touch each other. Steam for 10 minutes. That's enough time to go chief down a bowl!
Serve with dumpling sauce.