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This easy Slow Cooker Minestrone Soup recipe combines fresh vegetables, beans, and pasta in a rich broth. Perfect for those busy days when cooking feels impossible but you still want something homemade and nourishing – just set it and forget it!

👩🍳 Serve this hearty soup with crusty sourdough bread or buttery breadsticks for the ultimate comfort meal. Your family will think you spent hours in the kitchen, but we’ll keep the slow cooker secret between us!
My 2 Best Tips For Making Slow Cooker Minestrone Soup
Season Generously at the End: Vegetable-heavy soups need more seasoning than you might think. Taste your soup before serving and don’t be shy with the salt and pepper – it really makes all the flavors pop!
Use Quality Stock for Maximum Flavor: Since the broth is such a big component of this soup, invest in good vegetable or chicken stock. It truly makes a difference in the final taste. If you’re using low-sodium broth, you’ll likely need to add more salt to taste.

🩷 Melissa
What I love most about Italian minestrone soup is that it’s a blank canvas for whatever vegetables are hiding in your fridge!
Got some zucchini that needs using up? Toss it in. Extra green beans from dinner last night? Perfect addition.
This is a super budget-friendly and filling meal. With beans providing protein and pasta adding heartiness, this soup stretches your dollar while keeping everyone satisfied.
It’s amazing how a few simple ingredients can create something so substantial and delicious!

Slow Cooker Minestrone Soup
Ingredients
- 2 tablespoons olive oil
- 1 medium yellow onion, chopped
- 2 medium carrots, peeled and chopped
- 2 medium ribs celery, chopped
- ¼ cup tomato paste
- 4 cloves garlic, minced
- 1 teaspoon dried oregano
- 1 teaspoon dried thyme
- 4 cups vegetable broth, or chicken stock
- 1 can diced tomatoes, with liquid, 28-ounces
- 2 cups water
- 2 cups chopped mixed seasonal vegetables, potatoes, squash, zucchini, green beans, or peas all work
- 1 teaspoon fine sea salt
- 2 bay leaves
- ½ teaspoon ground black pepper
- 1 cup small pasta, orecchiette, shells, or elbow macaroni
- 1 can beans (15 ounces), such as kidney, Great Northern beans or cannellini beans, rinsed and drained (or 1 1/2 cups home-cooked beans)
- 2 cups baby spinach or chopped kale
- Additional salt and pepper, to taste
Instructions
- Add the onion, carrots, celery, tomato paste, garlic, oregano, thyme, vegetable broth, diced tomatoes, water, mixed vegetables, salt, bay leaves, and black pepper to the slow cooker. Stir well.
- Cover and cook on Low for 6–7 hours or High for 3–4 hours, until the vegetables are tender.
- About 30 minutes before serving, stir in the pasta. Cover and cook until the pasta is tender.
- Stir in the beans and spinach (or kale) and cook for another 5–10 minutes, until heated through and the greens are wilted.
- Remove the bay leaves, taste, and adjust seasoning with more salt and pepper if needed.
- Serve hot with Parmesan cheese sprinkled on top, if desired.
Notes
- If using hearty vegetables like potatoes or green beans, chop them a little smaller so they cook evenly.
- To prevent pasta from overcooking, you can boil it separately and stir it in just before serving.
- Use a good stock here, it’s a big part of the flavor.
- Don’t be stingy with the salt when serving this because it adds so much to a vegetable heavy dish.
Nutrition
How To Make Minestrone Soup

Step 1: Prep all the vegetables – chop, mince, and open cans!

Step 2: Add everything EXCEPT pasta, kale (or spinach), and beans to slow cooker. Cover and cook on Low for 6–7 hours or High for 3–4 hours, until the vegetables are tender.

Step 3: About 30 minutes before serving, stir in the pasta. Cover and cook until the pasta is tender. Stir in the beans and spinach (or kale) and cook for another 5–10 minutes, until heated through and the greens are wilted.

Step 4: Remove the bay leaves, taste, and adjust seasoning with more salt and pepper if needed. Serve hot with Parmesan cheese sprinkled on top, if desired.
Recipe FAQs
Yes, chicken stock actually adds wonderful depth to the soup. I often use chicken broth when I have it on hand – it makes the soup even more satisfying and flavorful.
For best results, add the pasta during the last 30 minutes of cooking. However, if you’re meal prepping or freezing portions, definitely cook the ditalini pasta separately and add it when serving to prevent it from getting mushy.
Cut heartier vegetables like carrots and potatoes into slightly larger pieces – they’ll hold their shape better during the long cooking process. Adding delicate vegetables like baby spinach at the very end helps them maintain their texture and vibrant color.
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