Instructions:
- Place the raw chicken breasts in the bottom of the slow cooker insert.
- Sprinkle the diced onion, taco seasoning, chili powder, cumin, oregano, garlic powder, salt, and pepper evenly over the chicken. Pour the chicken broth around the edges of the pot.
- Cover and cook on LOW for 7–9 hours or HIGH for 4–6 hours, until the chicken is very tender and shreds easily.
- Remove the chicken breasts from the pot and place them on a cutting board. Use two forks to shred the chicken completely.
- Return the shredded chicken to the slow cooker. Stir in the rinsed black beans and the fresh lime juice until everything is well coated with the cooking liquid/seasoning. Keep warm on the 'Keep Warm' setting if necessary.
- To assemble individual salads, layer the shredded lettuce/greens as the foundation in large bowls.
- Spoon a generous portion of the warm chicken and bean mixture over the greens.
- Top the salad with diced tomatoes, avocado, cheese, and crispy tortilla strips. Serve immediately with optional toppings like salsa or sour cream.