Cut the chicken breast into bite-sized cubes and season evenly with the sea salt and black pepper.
Heat the ghee in a large non-stick skillet over medium-high heat until melted and shimmering.
Add the chicken to the skillet and sauté for 5 minutes until golden brown on all sides, then remove chicken and set aside.
In the same skillet, add the diced onion, grated ginger, and minced garlic, sautéing for 3 minutes until softened and fragrant.
Stir in the garam masala and turmeric powder, toasting the spices for 30 seconds to release their oils.
Pour in the tomato puree and coconut milk, stirring to combine and scraping up any browned bits from the bottom of the pan.
Return the chicken to the skillet, reduce heat to low, and simmer for 10 minutes until the sauce has thickened and chicken is cooked through.
While the sauce simmers, steam or sauté the cauliflower rice in a separate pan until tender.
Divide the cauliflower rice into a bowl, top with the chicken tikka masala, and garnish with fresh chopped cilantro.