This cozy sausage tortellini soup is the best cold-weather meal. Chock-full of veggies, spicy pork sausage, and cheesy vegetable tortellini, this soup will warm you right up!
Add 1 tablespoon of olive oil to a large 6-quart pot or heavy-bottomed pot like a dutch oven over medium-high heat. Once oil has heated, add sausage and cook through, breaking into tiny pieces.
Add leeks and garlic and sauté until softened, about 2 minutes.
Add carrots and celery and toss. Add the diced tomatoes, paste, and bay leaf. Toss to incorporate.
Add the vegetable stock and bring soup to a boil. Then reduce heat and let simmer, covered, until vegetables are softened, about 15 minutes, stirring occasionally.
Remove from heat and stir in kale leaves until wilted. Add the tortellini and cook from residual heat of the soup until softened and cooked through, about 5 minutes.
Divide into bowls and serve. Leftovers can be put in an airtight container in the refrigerator for up to one week.