Preheat your oven to 400°F and line a baking sheet with parchment paper.
Rub the chicken breast with the extra virgin olive oil and season with half of the sea salt, black pepper, and garlic powder.
Place the chicken on the prepared baking sheet and bake for 20-25 minutes, or until the internal temperature reaches 165°F.
In a small saucepan, combine the dry brown rice with 0.5 cup of the chicken bone broth; bring to a boil, then reduce heat to low, cover, and simmer for 30-35 minutes until the liquid is absorbed.
While the chicken and rice cook, steam the fresh green beans in a steamer basket over boiling water for 5-7 minutes until they are tender-crisp and vibrant green.
To prepare the gravy, whisk the remaining 0.5 cup of chicken bone broth with the arrowroot powder, dried thyme, and the remaining salt, pepper, and garlic powder in a small saucepan.
Place the saucepan over medium heat and whisk constantly until the mixture simmers and thickens into a smooth, velvety gravy.
Slice the baked chicken breast and serve it over the savory brown rice with the steamed green beans on the side, drizzling the warm gravy over the chicken and rice.