Preheat your oven to 425°F and line a large rimmed baking sheet with parchment paper.
Slice the chicken breast into thin, even strips and place them into a medium mixing bowl.
In a small jar, whisk together the olive oil, lemon juice, garlic powder, cumin, paprika, turmeric, salt, and pepper.
Pour the spice marinade over the chicken strips and toss thoroughly until every piece is well-coated.
Spread the chicken in a single layer on the prepared baking sheet, ensuring no pieces are overlapping.
Roast for 15 to 18 minutes, or until the chicken is cooked through and the edges are slightly charred and crispy.
While the chicken is roasting, lightly sauté the cauliflower rice in a non-stick pan over medium heat for 5 minutes until tender.
Dice the cucumber and halve the cherry tomatoes to prepare the fresh vegetable garnish.
Divide the cauliflower rice into a bowl, top with the roasted chicken and fresh vegetables, then finish with a dollop of Greek yogurt and fresh parsley.