Slice the chicken breast into thin, bite-sized strips and place them in a medium bowl.
Toss the chicken with 0.5 tbsp olive oil, cumin, coriander, turmeric, garlic powder, smoked paprika, sea salt, and black pepper until evenly coated.
Heat the remaining 0.5 tbsp olive oil in a large skillet over medium-high heat.
Add the seasoned chicken to the skillet and sauté for 6 to 8 minutes, stirring occasionally, until the chicken is golden brown and cooked through.
While the chicken is cooking, whisk together the plain Greek yogurt, lemon juice, and dried dill in a small bowl to make the sauce.
Place the warm cooked brown rice in the base of a serving bowl.
Top the rice with the cooked chicken strips, diced cucumber, cherry tomatoes, and red onion.
Drizzle the prepared yogurt sauce over the entire bowl and serve immediately.