Tortellini & Sausage Soup

adapted from Betty Crocker

1 pound Sweet Italian link sausages (casings removed)
1 medium onion, coarsely chopped (about 1/2 cup)
3-5 Cups water (may need to add up to 5 C if you use more Tortellini)
1/2 tsp dried basil (I used a little bunch of fresh, finely chopped)
1/2 tsp dried oregano (I used a little bunch of fresh, finely chopped)
1 Cup chopped carrots
1 medium zucchini halved lengthwise and sliced
2 cans (10 3/4 oz each) condensed tomato soup
8 oz frozen cheese tortellini (I used a 19 oz bag, we love it!)
Grated Parmesan cheese

Cook & stir sausage & onion in 4 qt dutch oven until sausage is light brown; drain. Stir in remaining ingredients except cheese. Heat to boiling; reduce heat. Cover and simmer 20 minutes or until vegetables and tortellini are tender. Serve with cheese.