Pot Stickers or Jiaozi are traditional Chinese dumplings that are both fried and steamed.
You can use whatever filling you like. Pork is traditional, but there are many versions. Any meat should be thoroughly cooked, and all ingredients should be sliced very small. For the example shown, garlic and ginger was cooked in oil, and then asparagus and tofu were cooked with the oil. These instructions show how to assemble the pot stickers once the filling is ready.