Heat the avocado oil in a large pot over medium heat.
Add the diced yellow onion, carrots, and celery, sautéing for 5 minutes until the vegetables are softened and fragrant.
Place the chicken breast in the pot and sear for 2 minutes on each side to lock in the juices.
Stir in the red lentils, dried thyme, garlic powder, sea salt, and black pepper.
Pour in the chicken broth and bring the mixture to a gentle boil.
Reduce the heat to low, cover, and simmer for 20 minutes until the lentils are tender and the chicken is fully cooked.
Remove the chicken breast, shred it with two forks, and return the meat to the pot.
Add the chopped kale and stir for 2 minutes until it becomes bright green and tender before serving.