Slice the chicken breast into thin, even strips for quick cooking.
In a small bowl, whisk together the ground cumin, ground coriander, turmeric, garlic powder, sea salt, and black pepper.
Toss the chicken strips with the spice blend until every piece is thoroughly coated.
Heat the extra virgin olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and sauté for 6 to 8 minutes, turning occasionally, until golden brown and cooked through.
While the chicken cooks, dice the cucumber, halve the cherry tomatoes, and finely chop the red onion.
In a small ramekin, whisk the tahini with lemon juice and a splash of warm water until it reaches a smooth, pourable consistency.
Assemble the bowl by placing the warm cooked basmati rice at the base, then topping with the spiced chicken and the fresh vegetable salad.
Drizzle the zesty tahini sauce over the entire bowl and serve immediately.