Cut the beef brisket and assorted vegetables into bite-sized pieces.
Place the brisket in a pot and stir-fry over medium heat until the fat is rendered.
When the fat comes out, add onions, green onions, carrots, mushrooms, and other vegetables and stir-fry together.
Add soy sauce, minced garlic, pepper, cooking wine, and other seasonings, mixing well.
Pour in 100ml of water, cover with a lid, and boil until the vegetables are cooked through.
Finally, add sesame oil, give it a final stir, and it's done.