In a large skillet over medium-high heat, add the oil. Add the white part of the scallions and the cauliflower rice, stir to coat in the oil. Press down slightly so the rice forms a single layer in the pan. Let sear for 4 minutes and do not stir. We are looking to get the rice a golden brown color.
Mix in the peas and carrots and diced chicken. Stir constantly for a few minutes until the veggies and chicken are heated through.
Add the scallions and sauce to the pan, stir to coat everything in the sauce. Take off the heat immediately. Serve with sesame seed garnish.
Notes
*This gives a deeper flavor and color. If you cannot find it use regular soy sauce. It is normally located next to soy sauce in grocery stores.