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Slow Cooker Italian Meatball Vegetable Soup

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Looking for a warm and cozy soup? Well this slow cooker Italian meatball vegetable soup is soul warming and scrumptious. Oh, and BONUS it's freezer friendly and 95% can be made in advance, frozen and whipped up on a chilly day or when you're just not in the mood to cook. Serve with crusty bread!
Course beef
Cuisine American
Keyword freezer friendly, meatballs, slow cooker, soup, vegetable
Prep Time 25 mins
Cook Time 8 hrs
Total Time 8 hrs 25 mins
Servings 8 servings
Calories 207
Author Laurie McNamara



  • 24 meatballs rolled into 1-inch balls
  • cups marinara homemade or store-bought
  • 1/3 cup dry red wine like merlot, Malbec or pinot noir
  • 1 medium yellow onion diced
  • 1 to 2 zucchinis depending on size, quartered and sliced
  • 1 to 2 yellow squash depending on size, quartered and sliced
  • 1 to 2 carrots sliced
  • 8 ounces cremini mushrooms quartered
  • 1 clove garlic minced
  • 1 to 2 pinches red pepper flakes optional


  • 1 quart low-sodium chicken or vegetable broth
  • 1½ to 2 teaspoons kosher salt
  • freshly ground black pepper to taste


  • Fresh basil leaves
  • 1/2 cup grated parmesan cheese



  • Use a tablespoon scoop to measure out the meatballs and roll into balls. Place on parchment paper on a medium, rimmed, metal baking sheet and arrange the meatballs in one even layer. Flash-freeze for 20 to 25 minutes. (while the meatballs flash-freeze I will prep the veggies)
  • Meanwhile, in a large gallon-size freezer-safe sealable bag, add in the marinara, wine, onion, zucchini, yellow squash, carrots, mushrooms, garlic and red pepper flakes (if using). Add the flash-frozen meatballs and seal half of the way closed.
  • Carefully squeeze out as much of the air as possible before sealing the bag all of the way. Lay flat to freeze, this makes it easier to store and for stacking other slow cooker freezer meals. Store in your freezer for 3 to 4 months, possibly longer :).


  • Remove the Slow Cooker Italian Meatball Vegetable Soup bag from the freezer the day before you plan to make it. I found that if I take it out the morning before the actual day I plan make it, it will have plenty of time to thaw out. I DO NOT recommend adding the completely frozen bag ingredients in to your slow cooker, doing so may affect cooking times and the outcome of the soup.
  • Unzip the baggie and empty the contents into your slow cooker (discard the bag) and pour in 1 quart of low-sodium chicken or vegetable broth. Cover and cook on low for 8 hours. Before serving season with kosher salt and freshly grated black pepper
  • Serve with fresh basil, Parmesan cheese and crusty Italian bread.


It's handy to label the freezer kit meal with what's in the kit and what is needed the day of, along with any cooking and serving instructions.


Serving: 1.5cups | Calories: 207kcal | Carbohydrates: 11g | Protein: 14g | Fat: 12g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Cholesterol: 36mg | Sodium: 1002mg | Potassium: 785mg | Fiber: 2g | Sugar: 6g | Vitamin A: 1764IU | Vitamin C: 16mg | Calcium: 109mg | Iron: 2mg