1.
Mix together the steak with the soy sauce, fish sauce, sesame oil and arrowroot flour.
2.
Heat olive oil over medium high deep in a large pan. Once very hot, add the steak and allow to brown on each side, about 3 minutes.
3.
Add the spring onions, ginger, garlic and chili pepper to the pan and stir to combine.
4.
Add the spinach and allow to wilt. Remove from heat and serve with vegetables or cauliflower rice.