Orange Beef (Paleo, Whole30, AIP)

Name: Orange Beef (Paleo, Whole30, AIP)
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Chinese
Ingredients: 1 lb flank steak; 1 tsp sea salt; 1/4 tsp black pepper (omit for AIP); 2 tbsp arrowroot starch; 2 tbsp avocado oil; 3 cloves garlic, minced; 1 thumb ginger, grated and minced; 3 tbsp coconut aminos; 2 tsp apple cider vinegar; 1/4 cup fresh orange juice; 1 tbsp coconut sugar (omit for whole30); 2 tsp orange zest; 1 tbsp green onion, sliced