In a large mixing bowl, combine the ground pork, shredded cabbage, sliced green onions, grated ginger, minced garlic, coconut aminos, and toasted sesame oil until well incorporated.
Lay the wonton wrappers on a clean surface and place a rounded tablespoon of the pork mixture into the center of each.
Lightly moisten the edges of each wrapper with water using your finger, then fold the wrapper in half over the filling and pinch the edges firmly to seal.
Heat the avocado oil in a large non-stick skillet over medium-high heat.
Place the potstickers in the skillet and sear for 2-3 minutes until the bottoms are deeply golden and crisp.
Carefully pour 2 tablespoons of water into the skillet and immediately cover with a tight-fitting lid to steam for 4 minutes or until the pork is cooked through.
While the potstickers steam, whisk together the tamari, rice vinegar, and red pepper flakes in a small bowl to create the dipping sauce.
Remove the lid and allow any remaining water to evaporate before serving the potstickers warm with the prepared sauce.