Slow Cooker Tomato Tortellini Soup

August 29, 2025

Slow Cooker Tomato Tortellini Soup is a wonderful, cozy meal that’s simple to get ready and full of yummy flavors. It’s filled with tender tortellini pasta, a rich tomato broth, and a mix of fresh veggies and herbs that make every spoonful taste just right. The slow cooker does most of the work, letting all the ingredients blend together slowly and gently for a deep, comforting flavor.

I love using my slow cooker for this soup because it means I can set it up in the morning and come home to a warm, ready-to-eat meal without fussing. The tortellini stays delightfully soft but not mushy, soaking up the tomato base just enough to be tasty without falling apart. Plus, the aroma that fills the house while it cooks is like a little reminder that dinner is going to be something special.

My favorite way to serve this soup is with a sprinkle of freshly grated Parmesan on top and a slice of crusty bread to dunk in the tomato goodness. It’s the kind of meal that everyone at the table loves, from kids to grown-ups, and it always feels like a warm hug on a chilly day. I often find myself making extra because it tastes even better the next day!

Slow Cooker Tomato Tortellini Soup

Key Ingredients & Substitutions

Cheese Tortellini: This adds a creamy, cheesy touch to your soup. If you can’t find cheese tortellini, spinach or mushroom-filled tortellini work well too. For a gluten-free option, try a gluten-free pasta version.

Tomatoes (Crushed & Diced): These create the soup’s rich tomato base. If fresh tomatoes are in season, you can use those instead—just blend or chop finely. Tomato sauce can also replace the crushed tomatoes in a pinch.

Broth: Vegetable or chicken broth both taste great here. For a vegetarian version, just stick with vegetable broth. Low-sodium broth gives you control over the saltiness, which is helpful.

Spinach: Adds freshness and color. You can swap spinach for kale or Swiss chard if you prefer a heartier green. Just chop them well to match the soup’s texture.

How Do You Cook Tortellini in a Slow Cooker Without It Getting Mushy?

Cooking tortellini too long in the slow cooker can make it mushy and fall apart. Here’s how to avoid that:

  • Add tortellini during the last 15-20 minutes of cooking, not at the start.
  • Make sure the slow cooker is on high when adding the tortellini so it cooks quickly but evenly.
  • Stir gently after adding tortellini to prevent sticking but avoid over-stirring, which can tear the pasta.

This way, your tortellini stays tender and perfect, soaking flavor without losing shape.

Equipment You’ll Need

  • Slow cooker – perfect for cooking soup low and slow while you go about your day.
  • Large skillet – to sauté onions and garlic before adding them to the slow cooker for extra flavor.
  • Wooden spoon – great for stirring ingredients without scratching your pots.
  • Measuring cups and spoons – to get your seasonings and liquids just right.
  • Cheese grater – handy for freshly grating Parmesan to top your soup.

Flavor Variations & Add-Ins

  • Add cooked Italian sausage or ground turkey for extra protein and a meaty touch.
  • Swap spinach for kale or chopped Swiss chard for a heartier green with a bit more texture.
  • Mix in sun-dried tomatoes for a tangy burst that complements the tomato base well.
  • Sprinkle crushed red pepper flakes or a dash of smoked paprika to give the soup a mild spicy kick.

How to Make Slow Cooker Tomato Tortellini Soup

Ingredients You’ll Need:

  • 1 tablespoon olive oil
  • 1 small onion, finely chopped
  • 3 cloves garlic, minced
  • 4 cups vegetable or chicken broth
  • 1 can (28 ounces) crushed tomatoes
  • 1 can (14.5 ounces) diced tomatoes
  • 1 teaspoon dried basil
  • 1 teaspoon dried oregano
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and pepper, to taste
  • 1 package (about 9 ounces) refrigerated cheese tortellini
  • 2 cups fresh spinach, roughly chopped
  • Fresh basil, thinly sliced, for garnish
  • Grated Parmesan cheese, for serving

Time Needed:

This dish takes about 10 minutes to prep, then 3-7 hours to cook in a slow cooker depending on the heat setting you choose. Add about 20 minutes at the end for cooking the tortellini and spinach before serving.

Step-by-Step Instructions:

1. Sauté Onion and Garlic:

Heat the olive oil in a skillet over medium heat. Add the chopped onion and cook for 3-4 minutes until the onion becomes soft and translucent. Add the minced garlic and cook for another minute until it smells fragrant. This extra step adds great flavor to your soup.

2. Combine Ingredients in Slow Cooker:

Transfer the sautéed onion and garlic to your slow cooker. Add the crushed tomatoes, diced tomatoes (with juices), broth, dried basil, oregano, thyme, red pepper flakes (if you like some heat), salt, and pepper. Stir everything well to combine.

3. Slow Cook the Soup:

Cover and cook on low for 6-7 hours or on high for 3-4 hours. This slow cooking allows the flavors to develop and blend beautifully.

4. Add Tortellini and Spinach:

About 20 minutes before you’re ready to eat, stir in the refrigerated tortellini and chopped spinach. Cover and cook on high until the tortellini is tender, which usually takes about 15-20 minutes.

5. Season and Serve:

Taste your soup and add more salt or pepper if needed. Serve it hot, topped with fresh sliced basil and a sprinkle of grated Parmesan. Enjoy with crusty bread for dipping if you like!

Slow Cooker Tomato Tortellini Soup

Can I Use Frozen Tortellini Instead of Refrigerated?

Yes, you can use frozen tortellini! Just add it a little earlier—about 25-30 minutes before serving—and make sure the slow cooker is set to high to ensure it cooks through properly.

Can I Prepare This Soup Ahead of Time?

Absolutely! You can assemble the soup up to the point before adding tortellini and spinach, then refrigerate it for up to 24 hours. When ready to eat, add the tortellini and spinach, then cook on high for 20 minutes.

How Should I Store Leftovers?

Keep leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove or in the microwave, adding a splash of broth or water if the soup has thickened too much.

Can I Add Meat to This Soup?

Yes! Browned Italian sausage, cooked chicken, or ground turkey make excellent additions. Add cooked meat along with the tomatoes and broth in step 2 for best results.

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Willow

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