1 large onion, chopped small
1 T + 2 tsp. olive oil
1 T minced garlic
1 tsp. ground fennel
1 tsp. dried oregano
1 tsp. dried basil
4 links sweet Turkey Italian Sausage (about 15 oz., or use all five links if you want a thicker soup)
8 cups chicken stock (or use 4 cans plus 1/2 cup water)
4 cups beef stock (or use 2 cans plus 1/4 cup water)
1 small bunch kale, ribs cut away and chopped into small pieces
1 can petite dice tomatoes with juice (14.5 oz.)
1/2 cup broken whole wheat spaghetti pieces
freshly grated Parmesan cheese for serving