Pat the chicken breast dry and cut into bite-sized cubes.
In a small bowl, combine the chili powder, smoked paprika, cumin, sea salt, and black pepper.
Toss the chicken cubes in the spice blend until evenly coated.
Heat the olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and sauté for 5-6 minutes until golden brown and cooked through.
Add the sliced red bell peppers to the skillet and cook for another 3 minutes until slightly softened.
While the chicken cooks, steam the cauliflower rice in a separate pan or microwave until tender.
Rinse and drain the black beans, then warm them in a small saucepan over low heat.
Assemble the bowl by placing the cauliflower rice at the base, followed by the black beans, chicken, and peppers.
Top with sliced avocado, fresh cilantro, and a generous drizzle of lime juice before serving.