In a medium bowl, add the cooked chicken breast and sprinkle with chipotle chili power, cumin, and garlic powder.
On a large microwave-safe plate or platter spread tortilla chips in one layer.
Spoon the drained black beans evenly over the top of the tortilla chips.
Sprinkle the seasoned shredded chicken breast over the black beans.
Sprinkkle the shredded cheese evenly over the top.
Microwave for approximately 1-1/2 to 2 minutes. Please watch carefully as microwaves and cooking times can vary.
Remove from the microwave when the cheese is melted and the nachos are heated through.
Spoon pico de gallo over the top.
Top with sour cream or guacamole, if desired.