For the soup base
01 -
1 tablespoon olive oil
02 -
1 lb (450 g) mild or hot Italian sausage, casings removed if needed
03 -
1 medium yellow onion, diced
04 -
1 medium carrot, finely diced
05 -
4 cloves garlic, minced
06 -
2 tablespoons tomato paste
07 -
1 teaspoon dried Italian seasoning
08 -
1/2 teaspoon ground fennel
09 -
1/4 teaspoon red pepper flakes, optional
10 -
4 cups (960 ml) low-sodium chicken broth
11 -
1 can (14.5 oz or 410 g) diced tomatoes, with juices
For the creamy finish
12 -
1 cup (110 g) ditalini or other small pasta
13 -
1 cup (240 ml) heavy cream
14 -
1 cup (90 g) freshly grated parmesan cheese, plus more for serving
15 -
2 packed cups (60 g) baby spinach
16 -
2 tablespoons chopped fresh parsley
17 -
Salt and black pepper, to taste