Season roast with salt and pepper and place in your slow cooker with half a can of beef broth. Cook on LOW for about 10 hours and shred with two forks.
In a very large pot, saute carrots and seasoning mix in 1 tablespoon oil until tender.
Add beef, potatoes, remaining veggies, remaining beef broth, tomato soup, water, salt and pepper.
Bring to a boil, lower the heat, cover and simmer for about an hour.
Add water as desired while it cooks.
Notes
This soup is great for freezing and can be made in large batches.