Preheat the oven to 400oF (204oC) and line a baking sheet with parchment paper.
Toss the chicken breast in the avocado oil, turmeric, salt and pepper. Transfer to the baking sheet and cook for 25 to 30 minutes or until the chicken is cooked through.
Divide the spinach, cherry tomatoes, and cucumber between plates. Top with the chicken and enjoy!