Slice the chicken breast into bite-sized pieces and season evenly with cumin, garlic powder, sea salt, and black pepper.
Heat the olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and cook for 5-7 minutes until golden brown and cooked through, then remove and set aside.
In the same skillet, sauté the sliced bell peppers and red onion for 3-4 minutes until they are tender yet still have a slight crispness.
Add the cauliflower rice and black beans to the skillet, stirring for 2 minutes until warmed through and infused with the pan juices.
Divide the cauliflower rice and bean mixture into a bowl and top with the cooked chicken.
Finish the bowl with fresh avocado slices, a squeeze of lime juice, and a sprinkle of chopped cilantro.