In a large skillet over medium-high heat, cook the ground beef, breaking it up with a spoon, until no longer pink, about 6-8 minutes. Drain any excess fat.
To your 6-quart or larger slow cooker, add the raw chicken thighs, browned ground beef, drained beans, diced onion, garlic, corn, diced tomatoes with chilies, and carrots.
In a medium bowl, whisk together the chicken broth, tomato paste, taco seasoning, oregano, cumin, smoked paprika, salt, and pepper until smooth. Pour this mixture evenly over the ingredients in the slow cooker.
Cover and cook on LOW for 6-8 hours or on HIGH for 3-4 hours, until the chicken is fall-apart tender and the flavors have melded.
About 30 minutes before serving, use two forks to shred the chicken thighs directly in the slow cooker. Stir everything together gently. Taste and adjust seasoning with more salt or pepper if needed.
Ladle the hearty stew into bowls. Top each serving with a generous sprinkle of shredded cheddar cheese and a vibrant mix of chopped fresh cilantro and parsley. Serve with lime wedges on the side for squeezing and optional sour cream or Greek yogurt.