Add the water and let the beef mixture come to a boil, and then add the flour and beef bouillon cube. Mix together well and then let sit off the heat and cool for 30 minutes before you make the patties.
Roll out the dough out on a surface with some flour and then cut them into circles. Fill half the sides with the beef filling, leaving room around the edges. Brush egg wash around the edges, and then fold over and gently press the ends together. Then take a fork and crimp the edges. Poke holes in the top and do make as many as you can. Brush the tops of them with egg wash and place in the oven to bake for 25 minutes. Garnish with chopped green onions.