Add 1 pound mini meatballs, 4 cups chicken broth, 1 (24-ounce) jar marinara sauce, 1 bay leaf, 2 teaspoons Italian seasoning, and 2 teaspoons minced garlic to a large stock pot or Dutch oven.
Stir to combine.
Bring the mixture to a boil over medium-high heat. Once boiling, cook for 5 minutes to heat the meatballs through.
Stir in 8 ounces spaghetti noodles, broken into 1½-inch pieces.
Reduce the heat to low and simmer for 10-12 minutes, stirring occasionally, until the spaghetti is tender.
Remove and discard the bay leaf.
Ladle the soup into serving bowls and top each serving with ¼ cup grated Parmesan cheese, divided evenly among the 6 servings. Serve warm and enjoy!
Notes
Refrigerate the leftovers in an airtight container for up to 5 days. You can use beef broth or vegetable broth instead of the chicken broth if you prefer.