1. Melt butter in a large pot over medium-high heat.

2. Sauté diced onion and garlic until tender, about 5 minutes.

3. Pour the beef stock into the pot.

4. Add tomatoes, green beans, carrot, kale, Italian seasoning and bay leaf. Bring the mixture to a boil.

5. Reduce heat and stir in Cooked Perfect meatballs and tortellini.

6. Simmer on medium for 5 minutes.

7. Serve in bowls with Parmesan cheese.