Heat a dutch oven over medium heat. Add the sausage and begin to brown, breaking it up as it cooks.
When sausage is about halfway cooked, add the onion, carrots, and garlic to the pot. Continue cooking and stirring until sausage is cooked through. Drain the fat if needed.
Add the beef broth, diced tomatoes, tomato sauce, Italian seasoning, and salt to the pot and stir well. Bring to a boil, reduce to a simmer, and cook for 20 minutes.
Add the tortellini to the pot and cook for 10-12 minutes or until the pasta is cooked to your liking.