In a saucepan, heat half of olive oil, add minced garlic and grated ginger, and fry for 30 seconds. Add water, coconut aminos, erythritol, red pepper flakes, and simmer on high for 3-4 minutes. Turn off the heat and set aside.
Add xanthan gum and beef strips to a zip bag and toss well.
In a frying pan, heat the other half of olive oil until hot. You can also use sesame oil instead. Add beef strips and stir until they begin to get brown. Set aside.
Heat a clean pan over medium heat (or use the same pan with beef if you want to), add the beef and prepared sauce, a pinch of salt and pepper, and cook for another minute stirring constantly.
Divide between plates and garnish with sliced scallions. The beef can be served in a bowl of some steamed broccoli florets or cauliflower rice or any other side dish of your choice.