Make the fajita seasoning. In a small bowl, combine chili powder, cumin, smoked paprika, garlic powder, onion powder, oregano, cayenne pepper, salt, and pepper. Mix well.
Season the chicken. Place chicken strips in a bowl and toss with half of the fajita seasoning and 1 tablespoon of olive oil until evenly coated.
Cook the chicken. Heat a large skillet over medium-high heat. Add the seasoned chicken and cook for 6-8 minutes, stirring occasionally, until golden brown and cooked through (internal temperature of 165°F). Remove chicken from the skillet and set aside.
Cook the vegetables. In the same skillet, add the remaining tablespoon of olive oil. Add sliced bell peppers and onion along with the remaining fajita seasoning. Cook for 6-8 minutes, stirring occasionally, until the vegetables are tender and slightly charred.
Finish with lime. Return the chicken to the skillet with the vegetables. Squeeze fresh lime juice over everything and toss to combine. Remove from heat.
Warm the beans and corn. In a small saucepan or microwave, warm the black beans and corn. Season with a pinch of salt.
Assemble the bowls. Divide rice among four bowls. Top each with chicken and vegetable mixture, black beans, corn, sliced avocado, shredded cheese, sour cream, and salsa. Garnish with fresh cilantro and serve with lime wedges.