Ingredients:

1 lb (450g) flank steak or sirloin, thinly sliced against the grain

2 tablespoons soy sauce

1 tablespoon oyster sauce

1 tablespoon hoisin sauce

1 tablespoon sesame oil

1 tablespoon cornstarch

3 tablespoons vegetable oil (divided)

4 cloves garlic, minced

1 teaspoon fresh ginger, minced

1 red chili, sliced (optional for heat)

6 cups mixed leafy greens (bok choy, spinach, Chinese broccoli, or kale)

2 tablespoons water

Salt and pepper to taste