Stir in the beef broth, beans, tomato sauce, and salt and stir well.
Bring mixture to a boil. Once boiling, stir in the uncooked rice and then cover, reduce heat, and simmer for 20 minutes, until rice is cooked and tender. Stir mixture occasionally to keep it from sticking to the bottom.
When the rice is cooked, top with cheese and return lid to the Dutch oven for 2-3 minutes until the cheese is gooey and melted.
Spoon beef burrito casserole into bowls and top with shredded lettuce, avocado, and sour cream.
Notes
*The nutritional information is for the prepared beef burrito casserole and does not include the toppings.