Follow these straightforward steps to create your Meatball Soup:

1. Make the Meatballs: In a large bowl, mix together ground beef, breadcrumbs, Parmesan cheese, egg, minced garlic, Italian seasoning, salt, and pepper until well combined. Form small meatballs, about 1-inch in size.

2. Sauté Vegetables: In a large pot, heat olive oil over medium heat. Add diced onions, carrots, and celery. Sauté for about 5-7 minutes until they soften.

3. Brown Meatballs: Carefully add meatballs to the pot and cook until browned on all sides. This should take about 5-6 minutes.

4. Add Broth and Tomatoes: Pour in the beef broth and diced tomatoes. Stir to combine and bring to a gentle simmer.

5. Cook Pasta: Add the small pasta to the pot. Allow it to cook according to package instructions, usually about 8-10 minutes.

6. Incorporate Greens: Once the pasta is cooked, stir in the fresh spinach or kale. Let it wilt for 2-3 minutes.

7. Season to Taste: Taste the soup and adjust seasonings with salt and pepper as needed.

8. Serve: Ladle the hot soup into bowls and garnish with fresh parsley if desired.

These steps will guide you to a delightful Meatball Soup that is not only easy to prepare but also filled with wholesome ingredients.