Slice the chicken breast into thin strips and set aside.
Heat the olive oil in a large skillet over medium-high heat.
Add the chicken strips to the skillet and season with chili powder, cumin, garlic powder, sea salt, and black pepper.
Sauté the chicken for 5-6 minutes until golden brown and cooked through, then remove from the pan and set aside.
In the same skillet, add the sliced bell peppers and red onion, sautéing for 4-5 minutes until tender-crisp with slight charring.
While the vegetables cook, steam the cauliflower rice in a separate pan with a splash of water until tender.
Divide the cauliflower rice into a bowl, top with the sautéed chicken and vegetable mixture.
Garnish with fresh avocado slices, chopped cilantro, and a drizzle of lime juice before serving.