Dice the chicken breast into bite-sized pieces and finely dice the yellow onion.
Heat the avocado oil in a medium pot over medium heat.
Add the chicken, onion, sea salt, and black pepper to the pot, sautéing until the chicken is browned and onions are translucent.
Stir in the minced garlic, grated ginger, turmeric, and cumin, cooking for 1 minute until highly fragrant.
Rinse the red lentils and add them to the pot along with the chicken broth.
Bring the mixture to a boil, then reduce heat to low, cover, and simmer for 15 to 20 minutes until the lentils are tender and have thickened the stew.
Stir in the coconut milk and fresh baby spinach, cooking for an additional 2 minutes until the spinach is fully wilted.
Serve warm in a bowl, ensuring a balance of chicken and lentils in every scoop.