Cut the chicken breast into bite-sized cubes and season with the sea salt, black pepper, and half of the garam masala.
Heat the ghee in a large skillet over medium-high heat and sear the chicken until golden on all sides, then remove and set aside.
In the same skillet, sauté the finely diced yellow onion, minced garlic, and grated fresh ginger until the onion is translucent and fragrant.
Stir in the remaining garam masala, turmeric, and ground cumin, cooking for one minute to toast the spices and release their oils.
Pour in the tomato puree and simmer for 5 minutes, then stir in the full-fat coconut milk to create a smooth, creamy sauce.
Return the seared chicken to the skillet and simmer for another 5 minutes until the chicken is cooked through and the sauce has thickened.
Meanwhile, steam or sauté the cauliflower rice in a separate pan until tender and lightly toasted.
Serve the spiced chicken and tomato cream sauce over the cauliflower rice and garnish with chopped fresh cilantro.