Let pizza dough rest on counter for 30 minutes before usingMix all the pork filling ingredients together and knead the pork mixture until it becomes paste-like - about 1-2 minutes by handRoll out pizza dough by adding a bit of flour so it’s not super sticky and cut into about 12 portions and roll them into ballsRoll out each ball to be about 5” wide (if the dough springs back as you roll out, let the dough rest for about 15 minutes more and then try again)Place dough on your palmPut about 2 tbsp of pork filling on dough and add 2 tbsp of chopped green onions on top almost overflowingPull the edges of dough up towards the center as you close the hole, pushing the filling downAn easy way is to take opposite sides of the edge and have them meet in the center, then do the same on the 90° / 270° side so it’s a square and then slowly close the gap with each opposing edgeOn the smooth side of the bun, brush top with egg wash and then dip into sesame seed (not just sprinkle but dip because we want lots of sesame seeds)Bake in a pre-heated oven at 400° F for about 20-25 minutes - if sesame seeds start to burn, tent with foil and continue baking until doneRemove from oven and serve