Cook the basmati rice according to package directions using water or broth until tender and fluffy.
In a small bowl, whisk together the olive oil, cumin, paprika, turmeric, garlic powder, sea salt, and black pepper to create a marinade.
Slice the chicken breast into thin bite-sized strips and toss thoroughly with the spice marinade until evenly coated.
Heat a non-stick skillet over medium-high heat and sauté the chicken until golden brown and cooked through, approximately 6 to 8 minutes.
While the chicken cooks, finely dice the cucumber, cherry tomatoes, and red onion, then toss them together in a small bowl.
In a separate small dish, whisk the tahini and lemon juice with a splash of warm water until the sauce reaches a smooth, pourable consistency.
Assemble the bowl by placing the cooked rice at the base, topping it with the spiced chicken and fresh salad, then finishing with a drizzle of the tahini sauce.