Ginger Beef, Mushroom & Kale Stir-Fry

INGREDIENTS

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 tbsp

rice wine vinegar

2 tbsp

corn starch

2 tsp

ground ginger

1/4 tsp

freshly-ground black pepper

1 lb

thinly sliced flank steak or sirloin, cut diagonally across the grain into thin strips

garlic cloves, minced

2 tbsp

olive oil

8 oz

baby portobello or button mushrooms, halved

4 oz

shiitake mushrooms, halved

3 cups

chopped kale

green onions, thinly sliced