Slice the chicken breast into thin, bite-sized strips.
In a small bowl, whisk together the olive oil, cumin, smoked paprika, turmeric, garlic powder, sea salt, and black pepper.
Toss the chicken strips in the spice mixture until evenly coated.
Heat a large non-stick skillet over medium-high heat and add the chicken, cooking for 6-8 minutes until golden brown and cooked through.
While the chicken cooks, finely dice the cucumber, cherry tomatoes, and red onion.
In a small bowl, combine the diced vegetables with the lemon juice and chopped fresh parsley to create a quick salad.
Place the warm cooked brown rice in the base of a serving bowl.
Top the rice with the spiced chicken and the fresh vegetable salad.
Drizzle the tahini over the entire bowl and serve immediately.