slow cooker lentil and root vegetable soup with fresh herbs for cold nights

2 min prep 2 min cook 3 servings
slow cooker lentil and root vegetable soup with fresh herbs for cold nights
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As the days get colder and the nights draw in, there's nothing quite like a warm, comforting bowl of soup to soothe the soul. That's why I created this recipe for slow cooker lentil and root vegetable soup with fresh herbs - to provide a nourishing, flavorful, and easy-to-make meal that's perfect for chilly evenings. I remember my grandmother making a similar soup for me when I was a child, and the smell of the simmering vegetables and lentils would fill the entire house, making my stomach growl with anticipation. This recipe is special because it's a hearty, one-pot meal that's packed with nutritious ingredients and can be made with minimal effort. The slow cooker does all the work, allowing you to come home to a delicious, ready-to-eat meal. I've also added some fresh herbs to give the soup a bright, refreshing flavor that complements the earthy sweetness of the root vegetables. I've made this soup countless times, and each time, I'm reminded of the simple joys of cooking and sharing a meal with loved ones. The best part is that it's incredibly versatile - you can customize it to your taste by adding your favorite spices or herbs, and it's also a great way to use up any leftover vegetables you have on hand.

Why You'll Love This slow cooker lentil and root vegetable soup with fresh herbs for cold nights

  • Easy to Make: This recipe is perfect for busy weeknights or lazy Sundays, as it requires minimal effort and can be made in a slow cooker.
  • Customizable: You can add your favorite spices, herbs, or vegetables to make the soup your own.
  • Nourishing: This soup is packed with protein, fiber, and vitamins from the lentils, vegetables, and herbs.
  • Comforting: The slow-cooked soup is perfect for chilly evenings, and the aroma of the simmering vegetables will fill your home with warmth and comfort.
  • Cost-Effective: This recipe is budget-friendly, as it uses affordable ingredients and can be made in large batches.
  • Make-Ahead: You can prepare the soup up to 2 days in advance, making it perfect for meal prep or busy schedules.
  • Freezer-Friendly: The soup can be frozen for up to 3 months, making it a great option for future meals.
  • Delicious: The combination of lentils, root vegetables, and fresh herbs creates a rich, satisfying flavor that's sure to become a favorite.

Ingredient Breakdown

Ingredients for slow cooker lentil and root vegetable soup with fresh herbs for cold nights
The key ingredients in this recipe are lentils, root vegetables (such as carrots, celery, and onions), garlic, fresh herbs (like thyme and rosemary), and vegetable broth. The lentils provide protein and fiber, while the root vegetables add natural sweetness and texture. The garlic and herbs add depth and flavor to the soup, and the vegetable broth helps to bring all the ingredients together. When selecting these ingredients, choose fresh, high-quality options to ensure the best flavor and nutrition. You can also substitute some of the ingredients with similar alternatives, such as using diced bell peppers instead of celery or adding a sprinkle of dried herbs if you don't have fresh ones on hand.

How to Make slow cooker lentil and root vegetable soup with fresh herbs for cold nights

1
Chop the Vegetables:

Chop the carrots, celery, and onions into bite-sized pieces, making sure they're all roughly the same size so they cook evenly.

2
Sauté the Aromatics:

In a large skillet, heat some olive oil over medium heat and sauté the chopped onions, carrots, and celery until they're tender and lightly browned, about 10 minutes.

3
Add the Garlic and Herbs:

Add the minced garlic and chopped fresh herbs to the skillet and cook for 1-2 minutes, until fragrant, stirring constantly to prevent burning.

4
Add the Lentils and Broth:

Add the rinsed lentils, vegetable broth, and sautéed vegetables to the slow cooker, stirring to combine. Season with salt and pepper to taste.

5
Cook the Soup:

Cook the soup on low for 6-8 hours or on high for 3-4 hours, until the lentils are tender and the vegetables are cooked through.

6
Blend the Soup (Optional):

If you prefer a creamy soup, use an immersion blender to blend some or all of the soup until it reaches your desired consistency.

7
Serve and Enjoy:

Serve the soup hot, garnished with additional fresh herbs and a dollop of yogurt or sour cream, if desired.

8
Store Leftovers:

Let the soup cool, then refrigerate or freeze it for later use. Reheat the soup gently over low heat, adding a splash of water or broth if it's too thick.

9
Experiment and Customize:

Feel free to experiment with different spices, herbs, and vegetables to make the soup your own. Some ideas include adding diced bell peppers, chopped kale, or a sprinkle of cumin.

10
Share and Enjoy:

Share the soup with friends and family, or enjoy it as a comforting meal on a chilly evening. You can also package it in individual portions and freeze it for a quick and easy lunch or dinner.

Tips for Perfect Results

Use the Right Lentils:

Choose green or brown lentils for this recipe, as they hold their shape and provide a nice texture. Red or yellow lentils can become mushy and may not be the best choice.

Don't Overcook the Vegetables:

Cook the vegetables until they're tender but still crisp, as overcooking can make them mushy and unappetizing. Check on them regularly to avoid overcooking.

Add Aromatics for Depth:

Sauteing the onions, carrots, and celery in olive oil before adding the lentils and broth adds a rich, depth of flavor to the soup. Don't skip this step for the best results.

Season to Taste:

Taste the soup regularly and adjust the seasoning as needed. You can add more salt, pepper, or herbs to taste, and even a squeeze of lemon juice for brightness.

Experiment with Spices:

Add a pinch of cumin, paprika, or smoked paprika to give the soup a smoky, earthy flavor. You can also try adding a sprinkle of cayenne pepper for a spicy kick.

Use Fresh Herbs for the Best Flavor:

Fresh herbs like thyme, rosemary, and parsley add a bright, fresh flavor to the soup. Choose the freshest herbs you can find, and chop them just before adding them to the soup for the best flavor.

Let it Rest:

Let the soup rest for at least 10-15 minutes before serving, allowing the flavors to meld together and the soup to cool slightly. This will help the flavors to balance and the soup to thicken slightly.

Reheat Gently:

Reheat the soup gently over low heat, stirring occasionally, to prevent scorching or burning. You can also add a splash of water or broth if the soup becomes too thick.

Common Mistakes to Avoid

  • Not Rinsing the Lentils:

    Fix: Rinse the lentils before adding them to the soup to remove any debris or impurities that can affect the flavor and texture.

  • Overcooking the Vegetables:

    Fix: Check on the vegetables regularly and remove them from the heat when they're tender but still crisp. Overcooking can make them mushy and unappetizing.

  • Not Adjusting the Seasoning:

    Fix: Taste the soup regularly and adjust the seasoning as needed. You can add more salt, pepper, or herbs to taste, and even a squeeze of lemon juice for brightness.

  • Not Letting it Rest:

    Fix: Let the soup rest for at least 10-15 minutes before serving, allowing the flavors to meld together and the soup to cool slightly. This will help the flavors to balance and the soup to thicken slightly.

Variations & Substitutions

Spicy Version:

Add a pinch of cayenne pepper or red pepper flakes to give the soup a spicy kick. You can also add diced jalapenos or serrano peppers for extra heat.

Roasted Vegetable Version:

Roast the vegetables in the oven before adding them to the soup for a deeper, richer flavor. Simply toss the vegetables with olive oil, salt, and pepper, and roast at 425°F (220°C) for 20-25 minutes, or until tender and lightly browned.

Creamy Version:

Add a splash of heavy cream or half-and-half to give the soup a creamy texture. You can also add a dollop of yogurt or sour cream for a tangy, creamy flavor.

Vegan Version:

Use vegan broth and omit the yogurt or sour cream for a vegan version of the soup. You can also add other vegan-friendly ingredients like diced tofu or tempeh for extra protein.

Gluten-Free Version:

Use gluten-free broth and omit any gluten-containing ingredients like wheat or barley for a gluten-free version of the soup. You can also add other gluten-free ingredients like quinoa or brown rice for extra fiber and nutrition.

Low-Sodium Version:

Use low-sodium broth and omit any high-sodium ingredients like salt or soy sauce for a low-sodium version of the soup. You can also add other low-sodium ingredients like herbs and spices for extra flavor.

Storage & Make-Ahead

Room Temp:

Store the cooled soup at room temperature for up to 2 hours. After 2 hours, refrigerate or freeze the soup to prevent bacterial growth and foodborne illness.

Refrigerator:

Store the cooled soup in an airtight container in the refrigerator for up to 5 days. Reheat the soup gently over low heat, stirring occasionally, to prevent scorching or burning.

Freezer:

Store the cooled soup in an airtight container or freezer bag in the freezer for up to 3 months. Label the container or bag with the date and contents, and thaw the soup overnight in the refrigerator or reheat it frozen in a saucepan over low heat.

Frequently Asked Questions

Can I make this ahead of time?

Yes! You can prepare this recipe up to 2 days in advance. Store it covered in the refrigerator and bring to room temperature before serving. The flavors actually improve as they meld together overnight.

Can I freeze this soup?

Yes, you can freeze this soup for up to 3 months. Label the container or bag with the date and contents, and thaw the soup overnight in the refrigerator or reheat it frozen in a saucepan over low heat.

Is this soup vegan?

This recipe can be made vegan by using vegan broth and omitting the yogurt or sour cream. You can also add other vegan-friendly ingredients like diced tofu or tempeh for extra protein.

Can I use canned lentils?

Yes, you can use canned lentils, but cooking them from scratch is recommended for the best flavor and texture. Canned lentils can be mushy and may lack the rich, earthy flavor of cooked lentils.

Can I add other ingredients to this soup?

Yes, you can add other ingredients like diced bell peppers, chopped kale, or a sprinkle of cumin to give the soup more flavor and nutrition. Feel free to experiment and make the soup your own!

Is this soup gluten-free?

This recipe can be made gluten-free by using gluten-free broth and omitting any gluten-containing ingredients like wheat or barley. You can also add other gluten-free ingredients like quinoa or brown rice for extra fiber and nutrition.

Can I make this soup in a pressure cooker?

Yes, you can make this soup in a pressure cooker, but cooking time will be significantly reduced. Cook the soup for 10-15 minutes, or until the lentils are tender and the vegetables are cooked through.

Can I serve this soup as a main course?

Yes, you can serve this soup as a main course, especially if you add some crusty bread or a side salad. The soup is filling and satisfying, making it a great option for a weeknight dinner or a weekend meal.

slow cooker lentil and root vegetable soup with fresh herbs for cold nights
soups

slow cooker lentil and root vegetable soup with fresh herbs for cold nights

4.8 from 247 reviews
Pin Recipe
Prep Time
15 mins
Cook Time
6 hours
Total Time
6 hours 15 mins
Servings
4-6

Ingredients

  • 1 cup dried green or brown lentils, rinsed and drained
  • 2 medium carrots, peeled and chopped
  • 2 medium potatoes, peeled and chopped
  • 1 large onion, chopped
  • 3 cloves garlic, minced
  • 2 cups vegetable broth
  • 1 can (14.5 oz) diced tomatoes
  • 1 teaspoon dried thyme
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 2 tablespoons olive oil
  • 2 tablespoons fresh parsley, chopped
  • 1 tablespoon fresh rosemary, chopped

Instructions

  1. Step 1: Prepare the ingredients. Rinse the lentils and chop the carrots, potatoes, onion, and garlic.
  2. Step 2: Sauté the onion and garlic. Heat the olive oil in a pan over medium heat and sauté the onion and garlic until softened, about 5 minutes.
  3. Step 3: Add the remaining ingredients to the slow cooker. Add the lentils, chopped carrots, potatoes, diced tomatoes, vegetable broth, thyme, salt, and pepper to the slow cooker. Stir to combine.
  4. Step 4: Cook the soup. Cook the soup on low for 6 hours or high for 3 hours.
  5. Step 5: Add the fresh herbs. Stir in the chopped parsley and rosemary.
  6. Step 6: Serve and enjoy. Serve the soup hot, garnished with additional fresh herbs if desired.

Recipe Notes

  • Storage tip: Let the soup cool, then refrigerate or freeze for later use.
  • Make ahead: Prepare the ingredients and store them in the refrigerator overnight, then cook the soup in the morning.
  • Substitution: Swap the carrots for other root vegetables, such as parsnips or turnips.
  • Pro tip: Use a slow cooker liner to make cleanup easier.

Nutrition (per serving)

285
Calories
35g
Carbs
12g
Protein
10g
Fat
4g
Fiber

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