Slice the chicken breast into thin, bite-sized strips and place them in a bowl.
Toss the chicken with the cumin, coriander, turmeric, garlic powder, smoked paprika, sea salt, and black pepper until evenly coated.
Heat the olive oil in a large skillet over medium-high heat. Add the chicken and sauté for 6-8 minutes until golden brown and cooked through.
While the chicken cooks, prepare the dressing by whisking together the tahini, lemon juice, and water in a small bowl until smooth and creamy.
In a separate small bowl, toss together the diced cucumber, tomato, and red onion to create a simple salad.
Place the warm basmati rice in the bottom of a serving bowl.
Top the rice with the spiced chicken and the fresh vegetable salad.
Drizzle the tahini dressing over the entire bowl and serve immediately.