In a large pot, heat a splash of oil over medium heat.
Add the sliced sausage and cook until browned.
Stir in the chopped onion, garlic, carrots, and celery; sauté for about 5 minutes.
Pour in the diced tomatoes and chicken broth.
Add the drained white beans and chopped kale.
Sprinkle in thyme, salt, and pepper to taste.
Bring the soup to a simmer and cover.
Cook for 20 minutes, allowing flavors to meld.
Taste and adjust seasoning as needed.
Serve hot and enjoy your comforting bowl of sausage soup!