Start by patting the chicken breasts dry and season with salt and pepper.
Heat a skillet or pan on medium heat, adding the olive oil.
Once the oil is hot, add the chicken breasts. Cook for about 5-7 minutes on each side or until they are golden brown and fully cooked.
While your chicken is cooking, in a bowl, mix together the fresh orange juice, zest, soy sauce, ginger, garlic, and red pepper flakes. This will be your zesty orange sauce.
Once the chicken is done, set it aside and reduce the heat to low.
Pour the orange mixture into the pan.
Sprinkle in the xanthan gum or your chosen low-carb thickener, stirring constantly until the sauce thickens.
Return the chicken to the pan and let it simmer in the sauce for another 3-4 minutes.
Garnish with chopped green onions before serving.