Best Crockpot Lentil Quinoa Soup Recipe

On chilly evenings, there’s nothing quite like coming home to a warm bowl of soup. I started making this crockpot lentil quinoa soup a few years ago when I was looking for easy, healthy dinner options that wouldn’t keep me in the kitchen all afternoon. Now it’s become one of those reliable recipes I turn to when life gets busy.

What I love most about this soup is how simple it is to throw together. I just add everything to the slow cooker in the morning, and by dinner time, the whole house smells amazing. The combination of hearty lentils and quinoa makes it filling enough for dinner, but it’s not heavy. Plus, it’s one of those soups that actually tastes better the next day, so I always make extra for lunches.

If you’re trying to add more meatless meals to your routine or just want something cozy that practically makes itself, this soup fits the bill. It’s become a regular in my rotation, and I think you’ll see why.

What Kind of Lentils Should I Use?

For this soup recipe, you’ve got several great lentil options to choose from. Brown or green lentils are ideal since they hold their shape well during long cooking times and won’t turn mushy in your crockpot. Red lentils cook faster and tend to break down more, which will give you a thicker, creamier soup – still tasty, just a different texture. French lentils (also called Puy lentils) are another excellent choice since they’re known for keeping their firm texture even after hours of cooking. Just remember to give your lentils a good rinse and quick check for any small stones before adding them to your crockpot.

Options for Substitutions

This healthy soup recipe is super adaptable – here’s what you can swap if needed:

• Sweet potato: You can easily swap sweet potato with butternut squash, regular potato, or even carrots. Just cut them into similar-sized pieces for even cooking.
• Quinoa: While quinoa adds nice protein, you could use bulgur wheat, millet, or brown rice instead. Just note that brown rice might need extra cooking time.
• Lentils: Any type of lentils works here – red, green, or brown. Red lentils cook faster and get mushier, while green and brown hold their shape better. Split peas can work too!
• Fresh herbs: No fresh parsley or cilantro? Use 1 tablespoon dried parsley and 1 tablespoon dried cilantro instead. Or swap cilantro with fresh basil if you’re not a cilantro fan.
• Spinach: Feel free to use any leafy greens – kale, Swiss chard, or collard greens all work great. Just add kale or collards a bit earlier as they take longer to soften.
• Spices: Don’t worry if you’re missing one or two of the dried spices – the soup will still taste good! Just don’t skip the cumin and turmeric, as they’re key to the flavor profile.
• Vegetable stock: You can use water in a pinch, but you might need to add extra seasonings. Mushroom broth makes a nice substitute too, adding an earthy flavor.

Watch Out for These Mistakes While Cooking

The biggest mistake when making crockpot lentil quinoa soup is adding all ingredients at once – instead, save the quinoa, spinach, and fresh herbs for the last 30-45 minutes of cooking to prevent them from becoming mushy or losing their bright flavor. Another common error is not rinsing your lentils and quinoa thoroughly before adding them to the pot, which can result in a gritty texture and cloudy broth. To get the most flavor from your spices, try blooming them in the olive oil for 1-2 minutes before adding them to the crockpot – this simple step releases their essential oils and creates a deeper, richer taste. For the perfect texture, resist the urge to lift the lid frequently during cooking, as this can add up to 20 minutes of extra cooking time each time you peek.

What to Serve With Lentil Quinoa Soup?

This hearty soup is practically a meal on its own, but a few simple sides can make it even better! A chunk of warm, crusty whole grain bread or some homemade cornbread is perfect for soaking up all the flavorful broth. Since this soup has lots of Middle Eastern spices, you might want to serve it with a simple cucumber and tomato salad dressed with lemon juice and olive oil. For a complete meal, you could also add a dollop of plain Greek yogurt on top of the soup and serve some warm pita bread on the side – it’s an easy way to round out this cozy dish.

Storage Instructions

Keep Fresh: This hearty lentil quinoa soup stays good in the fridge for up to 5 days when stored in an airtight container. The flavors actually get better after a day or two as all those wonderful spices have time to mingle together. Perfect for making on Sunday and enjoying throughout the week!

Freeze: This soup is a meal-prep champion! Let it cool completely, then portion it into freezer-safe containers or bags. It’ll keep well in the freezer for up to 3 months. Just leave a bit of space at the top of your container since liquids expand when frozen.

Warm Up: When you’re ready to enjoy your frozen soup, thaw it overnight in the fridge. Heat it up on the stovetop over medium heat, stirring occasionally, or pop it in the microwave. If it seems a bit thick after storage, just add a splash of broth or water to reach your desired consistency. Add fresh herbs right before serving for the best flavor!

Preparation Time	15-20 minutes
Cooking Time	360-480 minutes
Total Time	375-500 minutes
Level of Difficulty	Medium

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 600-700
• Protein: 30-35 g
• Fat: 15-20 g
• Carbohydrates: 100-110 g

Ingredients

For the soup:

• 1/2 cup quinoa (uncooked, rinsed thoroughly)
• 1/2 tsp dried basil
• 1 sweet potato (peeled, cut into 1-inch pieces)
• 8 cups vegetable stock (or low-sodium broth, Pacific Foods is a great option)
• 3 celery stalks, sliced
• 1/2 tsp salt
• 2 tsp olive oil
• 1/2 tsp ground coriander
• 1/2 tsp dried thyme (for best flavor, I use McCormick)
• 1/8 tsp cayenne pepper
• 3 large carrots, sliced
• 1 tsp ground cumin
• 1 cinnamon stick
• 3/4 cup lentils (uncooked, brown or green variety recommended)
• 1/2 tsp dried marjoram
• 1/4-inch fresh ginger (peeled, halved)
• 1/8 tsp paprika
• 1/2 tsp ground turmeric
• 2 bay leaves

For finishing:

• 1/4 cup fresh cilantro, chopped
• 1/4 cup fresh parsley, chopped
• 4 cups spinach, chopped (adds nutrients and wilts down quickly)

Step 1: Prepare the Ingredients (For Crockpot or Stovetop)

Gather all your ingredients for either the crockpot or stovetop method.

Set aside the parsley, cilantro, and spinach for later use.

If using a crockpot, place all ingredients except for parsley, cilantro, and spinach into the crockpot.

For stovetop cooking, divide the ingredients into two groups: one for boiling with quinoa and lentils, and the other for sautéeing with the vegetables.

Step 2: Cook the Base Ingredients

Crockpot:

Place all ingredients except parsley, cilantro, and spinach into a large crockpot.

Set it on Low and cook for 6 to 8 hours, or until the quinoa, lentils, and vegetables become tender.

Remove the cinnamon stick, bay leaves, and ginger pieces before proceeding to the next step.

Stovetop:

In a 2-quart stockpot, add stock or broth, the cinnamon stick, bay leaves, ginger, quinoa, and lentils.

Bring this mixture to a boil, then turn off the heat.

Meanwhile, in another 2-quart stockpot, heat 2 teaspoons of olive oil over medium-high heat until hot.

Sauté the sweet potato, carrots, and celery for about 8 minutes or until softened.

Stir in the remaining ingredients except parsley, cilantro, and spinach.

Step 3: Combine and Cook Through (Stovetop Method)

Combine the partially cooked quinoa and lentil mixture with the sautéed vegetable mixture in one of the stockpots.

Cover and simmer over a medium-low setting for about 15 minutes, or until the quinoa, lentils, and vegetables are completely cooked through.

Remove the cinnamon stick, bay leaves, and ginger pieces before moving to the next step.

Taste and adjust seasonings as desired.

Step 4: Incorporate Greens and Final Cook

Crockpot:

Stir in the parsley, cilantro, and spinach into the tender mixture in the crockpot.

Continue cooking for a few additional minutes until the greens are just wilted.

Taste again and adjust seasonings if necessary before serving.

Stovetop:

Before serving, stir the parsley, cilantro, and spinach into the cooked mixture.

Continue to cook for a few more minutes until the greens are just wilted.

Taste and adjust the seasonings if needed before serving.