Dice the chicken breast into bite-sized pieces and finely chop the onion and bell pepper.
Heat the olive oil in a medium pot over medium-high heat.
Add the chicken to the pot and cook until browned on all sides, approximately 5 minutes.
Stir in the onion and bell pepper, sautéing until the vegetables are softened and translucent.
Add the garlic powder, cumin, sea salt, black pepper, and minced chipotle peppers, stirring for 1 minute to toast the spices.
Pour in the crushed tomatoes, rinsed black beans, and water.
Bring the mixture to a gentle boil, then reduce the heat to low and cover.
Simmer for 15 to 20 minutes to allow the flavors to meld and the sauce to thicken.
Serve warm in a bowl, optionally garnished with fresh cilantro or a squeeze of lime.