In a bowl, combine the ingredients for the meatballs and form small, bite-sized balls.
In a large soup pot, bring chicken broth to a simmer.
Add diced carrots, celery, onion, and minced garlic to the pot.
Gently drop in the meatballs and let them cook through.
Stir in the spinach or escarole and acini di pepe pasta until vegetables are tender.
Season with salt and pepper to taste.