Slice the chicken breast into thin, bite-sized strips and place them in a bowl.
Toss the chicken with the cumin, coriander, turmeric, cinnamon, sea salt, black pepper, and half of the olive oil until evenly coated.
Heat a large non-stick skillet over medium-high heat and sear the chicken until golden brown and cooked through, approximately 6 to 8 minutes.
Remove the chicken from the pan and add the remaining olive oil along with the minced garlic and cauliflower rice.
Sauté the cauliflower rice for 4 to 5 minutes until tender and slightly toasted, then season with a pinch of salt.
While the rice cooks, dice the cucumber, halve the cherry tomatoes, and finely mince the red onion.
In a small jar or bowl, whisk together the tahini and lemon juice with a teaspoon of warm water until the consistency is smooth and creamy.
Divide the cauliflower rice into bowls, top with the spiced chicken and fresh vegetables, and finish with a drizzle of the tahini dressing.