Prep the chicken: Pat the chicken dry and toss with the oil.
Mix the BBQ seasoning in a small bowl, then coat the chicken evenly.
Cook the chicken: Heat a large skillet over medium-high. Sear the chicken in a single layer, 5–7 minutes, stirring a few times until browned and cooked through.
Glaze with BBQ sauce: Reduce heat to medium-low. Stir in the sugar-free BBQ sauce and simmer 2–3 minutes until glossy and slightly thickened.
Remove from heat.
Make the slaw: In a bowl, whisk mayo, apple cider vinegar, Dijon, salt, and pepper. Toss with shredded cabbage until lightly coated. Adjust seasoning to taste.
Cook the cauliflower rice: In a separate pan, sauté the riced cauliflower in a bit of oil and a pinch of salt over medium heat for 4–6 minutes until tender but not mushy.
Optional: add a splash of lime juice and a sprinkle of garlic powder.
Assemble the bowls: Divide cauliflower rice into bowls. Add a generous scoop of BBQ chicken, a handful of slaw, and your favorite toppings like avocado, green onion, and cilantro.
Finish and serve: Squeeze lime over the top and add extra BBQ sauce if desired. Serve warm.