Heat 2 tablespoons olive oil in a large pot over medium-high heat. Add 1 pound ground mild Italian sausage and cook until browned, breaking it into large pieces as it cooks.
Remove the sausage from the pan with a slotted spoon.
Add ½ diced yellow onion, 2 diced celery ribs, and 2 peeled and diced carrots to the pot. Sauté for 4-5 minutes until the vegetables are tender.
Add 1 tablespoon minced garlic and cook for 1 minute until fragrant.
Add the sausage back to the pan. Stir in 1 teaspoon salt, 1 teaspoon black pepper, 2 cans drained and rinsed cannellini beans, 4 cups chicken broth, and 3 cups chopped kale with the stems removed.
Bring the mixture to a boil. Cover and reduce the heat to the low. Cook for 10-15 minutes until the kale is wilted and cooked through.
Serve warm topped with ½ cup grated Parmesan cheese and enjoy!
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Notes
Refrigerate the leftovers in an airtight container for up to 5 days.