Mix the sour cream and minced chipotle peppers in adobo in a small bowl until smooth, then set aside.
Heat the olive oil in a large skillet over medium-high heat, add the diced chicken, cumin, and smoked paprika, and cook for 8 to 10 minutes, stirring occasionally, until the chicken reaches 165°F / 74°C and is lightly browned.
Divide the chopped romaine lettuce among 4 bowls as the base layer.
Top each bowl with equal portions of cooked chicken, black beans, corn, and pico de gallo, arranging them in separate sections.
Drizzle the chipotle sour cream dressing over each bowl just before serving.