Ginger Beef, Mushroom & Kale Stir-Fry

Bahan-bahan (2 porsi)

• 1/3 cup soy sauce (if making gluten-free, be sure to use GF soy sauce)
• 1/2 cup vegetable broth (or chicken/beef broth, or water)
• 3 tablespoons rice wine vinegar
• 2 tablespoons corn starch
• 2 teaspoons ground ginger
• 1/4 teaspoon freshly-ground black pepper
• 1 lb . thinly sliced flank steak or sirloin, cut diagonally across the grain into thin strips
• 2 g arlic cloves, minced
• 2 tablespoons olive oil
• 8 ounces baby portobello or button mushrooms, halved
• 4 ounces shiitake mushrooms, halved
• 3 cups chopped kale
• 2 g reen onions, thinly sliced