This Slow Cooker Mediterranean Meatball Soup is warm, filling, and very easy to make. You get tender meatballs, soft vegetables, chickpeas, tomatoes, orzo, and spinach in a rich herby broth. Most of the work is simple chopping and stirring, then the slow cooker does the rest.
Makes: 6 servings
Prep time: 20 minutes
Cook time: 6 hours 30 minutes on LOW or about 3 hours 30 minutes on HIGH
Total time: About 6 hours 50 minutes on LOW
Why I Love This Recipe
I love soup that feels like a full meal instead of a small starter. This one does exactly that.
The first time I worked on this style of soup, I wanted the flavors of a cozy meatball dinner without needing several pans. The slow cooker was a great fit. The tomatoes and herbs have time to flavor the broth, while the meatballs become tender. Chickpeas make every bowl more filling, and the zucchini and spinach bring in plenty of vegetables.
I also like adding the orzo near the end. It stays much nicer that way instead of sitting in the slow cooker all day and turning too soft.
Here are a few more reasons this recipe is a keeper:
- Most of the cooking happens in one slow cooker.
- Fully cooked meatballs make prep fast and simple.
- Chickpeas and meatballs make the soup hearty.
- Zucchini and spinach add vegetables without making the soup heavy.
- Feta adds a salty, creamy finish.
- The recipe makes enough for a family dinner or several lunches.
- You can easily change the vegetables or pasta.
What You’ll Need
- 24 ounces fully cooked frozen Italian-style meatballs, about 24 small meatballs
- 1 medium onion, diced
- 2 medium carrots, peeled and diced
- 1 medium zucchini, diced
- 4 garlic cloves, minced
- 1 can (15 ounces) chickpeas, drained and rinsed
- 1 can (28 ounces) diced tomatoes, with juices
- 4 cups low-sodium chicken broth
- Up to 1 additional cup low-sodium chicken broth, if needed
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon ground cumin
- 1/2 teaspoon kosher salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon red pepper flakes
- 3/4 cup dry orzo
- 2 packed cups baby spinach, chopped
- 2 tablespoons fresh lemon juice
- 1/2 cup crumbled feta cheese
- 2 tablespoons fresh parsley, chopped
Recipe and Instructions
Step 1: Prep the Vegetables
Peel and dice 1 medium onion. Peel and dice 2 medium carrots. Dice 1 medium zucchini into small pieces. Mince 4 garlic cloves. Chop 2 packed cups baby spinach and set it aside for later. Chop 2 tablespoons fresh parsley and keep it separate for serving.
Step 2: Build the Soup Base
Place the 1 diced medium onion, 2 diced medium carrots, 1 diced medium zucchini, and 4 minced garlic cloves into a black oval 6-quart crockpot.
Add 1 can (15 ounces) chickpeas, drained and rinsed, 1 can (28 ounces) diced tomatoes with their juices, 4 cups low-sodium chicken broth, 1 teaspoon dried oregano, 1 teaspoon dried basil, 1/2 teaspoon ground cumin, 1/2 teaspoon kosher salt, 1/4 teaspoon black pepper, and 1/4 teaspoon red pepper flakes.
Stir gently until everything is spread through the broth.
Step 3: Add the Meatballs and Slow Cook
Add 24 ounces fully cooked frozen Italian-style meatballs, about 24 small meatballs, to the soup. Press them gently into the broth so most of each meatball is covered.
Cover the crockpot. Cook on LOW for 5 hours 45 minutes or HIGH for 2 hours 45 minutes. The vegetables should be tender and the meatballs should be hot all the way through.
Step 4: Add the Orzo
Remove the lid. Stir 3/4 cup dry orzo into the hot soup.
Put the lid back on and cook on HIGH for 20 to 30 minutes. Stir once about halfway through if you can. The orzo is ready when it is tender but still has a little bite.
If the soup becomes thicker than you like, stir in up to 1 cup additional low-sodium chicken broth.
Step 5: Add the Spinach and Lemon
Once the orzo is tender, stir in the reserved 2 packed cups chopped baby spinach and 2 tablespoons fresh lemon juice.
Cover and let the soup sit for 5 minutes, just until the spinach wilts. Taste the broth and add a small extra pinch of salt or pepper only if needed.
Step 6: Add the Toppings and Serve
Ladle the hot soup into 6 round bowls. Divide 1/2 cup crumbled feta cheese and 2 tablespoons chopped fresh parsley over the bowls.
Serve while the soup is hot.
Why This Recipe Works (Quick Science)
The slow cooker uses low, steady heat. This gives the onion, carrots, garlic, tomatoes, and herbs time to flavor the broth without much work.
Using fully cooked meatballs is important. They only need to heat through, so they hold their shape well during the long cooking time.
The orzo goes in near the end because pasta absorbs liquid as it cooks. If it cooked for six hours, it could become very soft and soak up too much broth.
The spinach and lemon go in last for a similar reason. Spinach only needs a few minutes to wilt. Lemon tastes brighter when it is added at the end instead of cooking all day.
Feta brings salt, creaminess, and a little tang. That balances the tomatoes and makes the finished soup taste richer.
Pro Tips
- Use small or medium meatballs. Large meatballs make the soup harder to eat with a spoon.
- Don’t add the orzo at the start. It will become too soft.
- Cut the carrots and zucchini into similar-size pieces so they cook evenly.
- Start with low-sodium broth. Meatballs and feta can both contain quite a bit of salt.
- For a milder family meal, leave out the red pepper flakes. Adults can add them to individual bowls.
Tools You’ll Need
- 6-quart black oval crockpot
- Cutting board
- Chef’s knife
- Can opener
- Colander for rinsing chickpeas
- Measuring cups
- Liquid measuring cup
- Measuring spoons
- Wooden spoon or large spoon
- Soup ladle
- Round serving bowls
Substitutions and Variations
- Meatballs: Turkey or chicken meatballs work well in place of beef or pork meatballs. Use fully cooked meatballs of about the same size.
- Orzo: Use another very small pasta, but check it often because cooking times can change.
- Chicken broth: Vegetable or beef broth can be used instead.
- Chickpeas: Cannellini beans are a good swap.
- Spinach: Chopped kale works, but add it about 15 minutes before serving so it has more time to soften.
- Feta: Leave it off for a dairy-free soup.
- Spice: Skip the red pepper flakes for a very mild soup, or add more for extra heat.
- More vegetables: Diced bell pepper is an easy addition.
Common Mistakes
- Adding orzo too early: It can turn mushy and absorb much of the broth.
- Using raw meatballs without changing the method: This recipe is written for fully cooked meatballs.
- Adding too much salt at the start: Broth, meatballs, and feta all bring salt to the soup.
- Cutting carrots too large: Big pieces can take longer to become tender.
- Adding spinach at the beginning: Long cooking can make it very soft and dull.
- Forgetting that pasta keeps absorbing broth: The soup will naturally get thicker as it sits.
What to Serve With
This is already a hearty meal, so simple sides work best.
- Warm pita bread
- Toasted garlic bread
- Crusty bread for dipping
- Greek salad
- Cucumber and tomato salad
- Roasted vegetables
- Hummus with pita wedges
- A simple green salad with lemon dressing
Make-Ahead Tips
You can dice the onion, carrots, and zucchini up to 2 days ahead. Keep them covered in the refrigerator.
You can also measure the dried herbs and spices ahead of time.
For the best texture, do not add the dry orzo or chopped spinach until the day you cook the soup.
If you want to prepare the entire soup for future meals, cooking the orzo separately is another good option. Add cooked orzo to each bowl when serving. This keeps the pasta from soaking up broth while the soup is stored.
Macros Information
Approximate nutrition for 1 of 6 servings, using typical fully cooked Italian-style meatballs:
- Calories: about 510
- Protein: about 28 g
- Carbohydrates: about 49 g
- Fat: about 23 g
- Fiber: about 8 g
These numbers are estimates. The exact macros can change quite a bit depending on the brand and type of meatballs, broth, feta, and other ingredients you use.
Leftovers and Storage
Let leftover soup cool, then place it in airtight containers.
Keep it in the refrigerator for up to 4 days. The orzo will continue to soak up broth, so the soup will become thicker. Add a splash of chicken broth or water when reheating.
Reheat individual servings in the microwave or warm the soup gently in a saucepan until steaming hot.
For freezing, the soup has a better texture if you freeze it without the orzo. Freeze for up to 3 months, thaw overnight in the refrigerator, reheat, and add freshly cooked orzo.
FAQ
Q: Can I put frozen meatballs straight into the slow cooker?
A: Yes. This recipe uses fully cooked frozen meatballs, so they can go straight from the freezer into the crockpot.
Q: Can I use raw meatballs?
A: This recipe is designed for fully cooked meatballs. Raw meatballs need different food-safety and cooking considerations, so fully cooked meatballs are the easiest choice here.
Q: Can I cook the orzo separately?
A: Yes. In fact, this is a great choice if you plan to store leftovers. Cook the orzo according to its package, put some in each bowl, and ladle the hot soup over it.
Q: Why is my soup so thick the next day?
A: The cooked orzo keeps soaking up broth as it sits. Stir in a little chicken broth or water while reheating.
Q: Can I make this soup without pasta?
A: Yes. Leave out the orzo. The chickpeas and meatballs still make the soup filling.
Q: Can I cook it on HIGH instead of LOW?
A: Yes. Cook the meatball soup base on HIGH for about 2 hours 45 minutes, then add the orzo and continue cooking on HIGH for another 20 to 30 minutes.
Q: When do I know the soup is done?
A: The carrots should be tender, the meatballs should be heated all the way through, and the orzo should be tender but not mushy.
Final Thoughts
Slow Cooker Mediterranean Meatball Soup is the kind of dinner that makes a busy day easier. You get a cozy bowl packed with meatballs, vegetables, chickpeas, pasta, and a bright little hit of lemon and feta.
Keep some bread nearby for dipping, spoon the soup into big round bowls, and enjoy it while it’s hot. If you make this recipe, leave a comment and share how it turned out, what changes you tried, or any questions you have.