Finely mince the shrimp until it reaches a paste-like consistency.
In a large mixing bowl, combine the ground pork, minced shrimp, shredded napa cabbage, green onion, grated ginger, minced garlic, coconut aminos, sesame oil, sea salt, and black pepper.
Mix the filling thoroughly with your hands or a spatula until well incorporated.
Lay out the wonton wrappers on a clean surface and place approximately one tablespoon of filling in the center of each.
Lightly moisten the edges of the wrappers with water, fold them over the filling, and pinch the edges to create small pleats, ensuring they are tightly sealed.
Heat the avocado oil in a large non-stick skillet over medium-high heat.
Place the potstickers in the skillet, flat side down, and sear for 2 to 3 minutes until the bottoms are deep golden brown.
Carefully pour two tablespoons of water into the pan and immediately cover with a tight-fitting lid to trap the steam.
Reduce heat to medium and steam for 4 to 5 minutes until the wrappers are translucent and the pork is fully cooked.
Remove the lid and continue to cook for 1 minute to allow any remaining moisture to evaporate and the bottoms to re-crisp.