Shred cabbage, dice mushrooms, mince garlic, and thinly slice onions. Add veggies to a large bowl with ground pork, hoisin, freshly grated ginger, sesame oil, hot sauce, and pepper; mix well.

Place wonton wrappers on a workable counter area with a small bowl of water nearby. Add 1 tablespoon of pork mixture into the center of each wrapper. Lightly dip fingers into water and rub onto the edges of the wrappers. Fold wrapper over, creating a half-moon shape, and then pinch off the edges to seal in the filling. Repeat with remaining wrappers.

Heat oil in a large skillet over medium heat. Add enough potstickers to cover skillet in a single layer.  Cook until golden and edges crisp, approximately 2-3 minutes per side. Continue in this fashion until all potstickers have been cooked.

Serve hot with soy sauce for dipping and orange wedges on the side.