Slice the chicken breast into thin, bite-sized strips and place them in a bowl.
Toss the chicken with the ground cumin, smoked paprika, turmeric, garlic powder, sea salt, and black pepper until evenly coated.
Heat the olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and sear for 6-8 minutes, turning occasionally, until golden brown and fully cooked.
While the chicken cooks, dice the cucumber, halve the cherry tomatoes, and finely mince the red onion.
In a small ramekin, whisk together the Greek yogurt, tahini, and lemon juice to create the dressing.
Place the warm cooked rice in the center of a bowl.
Arrange the spiced chicken, cucumber, tomatoes, and red onion over the rice.
Drizzle the creamy tahini-yogurt sauce over the entire bowl and serve immediately.