Preheat the oven to 400 degrees F / 204 degrees C.
Add the chicken thighs to a baking dish. Season with olive oil, salt, pepper, garlic powder, paprika, cumin, and turmeric. Place in the oven and bake for 50 minutes.
Add the Brussels sprouts to a separate baking dish and season with olive oil, salt, and pepper. Bake for 30 minutes. (Note: If you are serving this dish to a child younger than 2 years of age, it's best to set aside some Brussels sprouts and steam them until soft, then cut them into bite-sized pieces or quarters.)
For the full step-by-step instructions and video tutorial, download the Little Lunches app.