Slice beef brisket thinly against the grain into bite-sized pieces.
2
Slice shiitake mushrooms and oyster mushrooms. Slice zucchini, carrot, yellow onion, and red bell pepper into similar bite-sized pieces. Mince garlic and ginger. Chop green onions, separating the white and green parts.
3
In a large pot or deep pan, heat cooking oil over medium-high heat. Add sliced beef brisket and sauté until browned on all sides.