In a large saucepan, brown the Italian sausage over medium heat. Drain off the fat.
Add the stock, onion, tomatoes, tomato paste, spices, and frozen vegetables. Over medium heat, bring to a boil.
Once boiling, cover the soup, turn the burner to low and allow the soup to simmer for 20-25 minutes or until the veggies are tender.
Serve immediately.
For the Slow Cooker:
Add the browned sausage and the rest of the ingredients to the slow cooker. Cook on low for 6-7 hours or on high for 3-4 hours or until the vegetables are tender. Serve immediately.