In a pot, combine brown rice and vegetable broth. Bring to a boil, then reduce heat and cover. Cook for about 30 minutes or until rice is tender.

In a pan, heat olive oil over medium heat. Add garlic powder and onion powder, sautéing for 1-2 minutes.

Stir in chopped spinach, diced tomatoes, black beans, salt, and pepper. Cook until spinach is wilted and heated through.

Once the rice is cooked, combine it with the vegetable mixture in the pan, stirring everything together until well mixed.

Serve warm, garnished with fresh herbs if desired.