Prepare the Filling: In a bowl, combine ground pork, garlic, ginger, green onions, soy sauce, and sesame oil. Mix well.
Assemble the Gyoza: Place a wrapper on a clean surface, add 1 tsp of filling, moisten the edges, fold, and pleat to seal. Repeat.
Cook the Gyoza: Heat oil in a skillet. Cook gyoza until bottoms are golden. Add water, cover, and steam for 5-6 minutes. Uncover and cook for 1-2 minutes to crisp.
Serve: Serve hot with dipping sauce.