Slice the chicken breast into thin, bite-sized strips and place them in a small mixing bowl.
Add the olive oil, cumin, coriander, turmeric, paprika, garlic powder, sea salt, and black pepper to the chicken, tossing until every piece is evenly coated.
Heat a non-stick skillet over medium-high heat and add the seasoned chicken, sautéing for 6-8 minutes until golden brown and cooked through.
While the chicken cooks, prepare the garlic yogurt sauce by whisking together the Greek yogurt, lemon juice, and minced fresh garlic in a small ramekin.
In a separate bowl, toss together the diced cucumber, tomato, and red onion to create a simple fresh salad.
Assemble the bowl by placing the warm cooked basmati rice at the base.
Top the rice with the sautéed shawarma chicken and the fresh vegetable salad.
Finish the dish by drizzling the creamy garlic yogurt sauce over the top and serve immediately.