Sear the braised meat: Set a pan over medium heat and toss the frozen braised beef square right in. The fat will start to melt down into the pan and crisp up the beef.
Let the beef cook and start to brown on one side before flipping it over.
Break up the beef and let it all crisp for another 2 to 3 minutes. Then, add just enough Japanese bbq sauce to coat it. Stir to incorporate the sauce, and then set the beef aside.
Make the slaw: Mix together all Carrot Ginger Slaw Components. Taste and adjust with more dressing components if needed.
Assemble the sandwich: First, toast the buns and optionally spread an extra layer of sriracha & mayo to each side of the bun.
Next, come in with a layer of the Carrot Ginger Slaw, then add the beef. Close the sandwich and enjoy.