In a bowl, mix ground pork, green onions, soy sauce, and sesame oil.
Place a teaspoon of filling in the center of each wonton wrapper.
Moisten the edges of the wrapper with water and fold into a triangle.
Pinch the edges to seal tightly and form a wonton.
Repeat until all filling is used.
In a pot, heat chicken broth over medium heat.
Add sliced shiitake mushrooms, garlic, and ginger to the broth.
Bring the broth to a gentle boil.
Add the wontons to the pot and cook for about 5-7 minutes.
Serve hot, garnished with fresh cilantro.