Rinse 1 cup of long-grain brown rice under cold water until the water runs clear. In a large pot, combine the rice with 2 cups of water. Bring it to a boil, then reduce the heat to low, cover, and let it simmer for about 45 minutes, or until the rice is tender and the water is absorbed.
While the rice is cooking, heat a tablespoon of olive oil in a separate skillet over medium heat. Add 1 diced small yellow onion and 1 diced green bell pepper. Sauté for about 5 minutes until they are softened. Add 3 minced garlic cloves and cook for an additional minute until fragrant.
Stir in 2-3 diced roma tomatoes to the skillet along with 2 tablespoons of taco seasoning. Cook for about 3 minutes, allowing the tomatoes to break down and the spices to become fragrant.
Once the rice is cooked, add it to the skillet with the sautéed vegetables. Pour in a 15 oz can of tomato sauce and stir to combine everything thoroughly. Add in 1/4 cup of nutritional yeast for a cheesy flavor and mix well.
Gently fold in a 15 oz can of rinsed black beans and 1 cup of cooked sweet corn. Stir until all the ingredients are evenly mixed. Allow the mixture to heat through for about 5 minutes.
Spoon the Fiesta Rice and Black Beans into bowls and top with your favorite toppings such as avocado slices, chopped cilantro, dollops of chipotle crema, diced fresh tomatoes, a drizzle of hot sauce, dairy-free cheese shreds, tortilla strips, and a squeeze of lime juice for an extra zing!