Dice the chicken breast into small, uniform cubes.
Heat the olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and season with ground cumin, garlic powder, sea salt, and black pepper.
Sauté the chicken for 5-6 minutes until golden brown and cooked through.
Add the sliced bell peppers to the skillet and cook for 3 minutes until slightly softened.
Stir in the rinsed black beans and chickpeas, heating them through for 2 minutes.
Add the chopped kale and stir constantly until the leaves are wilted and bright green.
Remove the skillet from heat and stir in the fresh lime juice to deglaze the pan.
Transfer the mixture to a bowl and top with the sliced avocado before serving.