Pat the chicken breast dry with a paper towel and dice into 1/2-inch bite-sized pieces.
In a small bowl, whisk together the chipotle powder, cumin, garlic powder, sea salt, and black pepper.
Toss the diced chicken in the spice blend until every piece is thoroughly and evenly coated.
Heat the olive oil in a large non-stick skillet over medium-high heat until shimmering.
Add the chicken to the skillet and sauté for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Lower the heat to medium and stir in the black beans, cooking for 2 minutes until they are heated through and have absorbed the spices.
While the chicken rests, warm the corn tortillas in a dry pan or over an open flame for 30 seconds per side until pliable.
Divide the chicken and bean mixture evenly between the tortillas, then garnish with fresh cilantro and a generous squeeze of lime.