Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (2024)

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Dump & go! This Slow Cooker Vegetable Barley Soup recipe couldn’t be easier. Just throw everything in the crockpot and walk away! Healthy, delicious and packed with nutrients.

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (1)

This slow cooker vegetable barley soup saved me on more than one occasion. I’ve lost count of how many times we’ve sat on the sidelines of my son’s soccer game on windy, blustery days. We barely noticed the weather while the game is on – cheering and living vicariously through every kick, pass and tackle will do that. But once we’re on our way home, all I can think of is a hot bowl of soup.

Truth be told, any of our favorite soup recipes would do. My son would vote for his favorite Pesto Turkey Tortellini Soup and my husband would opt for something like my Chicken and Rice Soup (Instant Pot).

But there is something really appealing about throwing all of the ingredients into a crockpot before the game and coming home to a piping hot, ALREADY COOKED batch of soup. Just serve and eat!

And as an extra bonus, this soup ranks high on the nutrition scale. It’s high in fiber and is plant based, not to mention packed with flavor thanks to the vegetables, herbs and spices.

💙 What's to love about vegetable barley soup:

▪️ SO EASY! After chopping the vegetables, just dump everything into your crockpot, along with some barley and broth. Set to LOW and let the slow cooker do its thing!
▪️ PLANT-BASED: This veggie-packed soup happens to be plant-based and vegan. It's packed with fiber (about 9 grams per servings) and nutrients.
▪️ VERSATILE: This soup is incredibly versatile. Switch up the veggies to suit your tastes or what you have on hand. Or swap the barley for another whole grain, such as brown rice or farro.

Ingredients for this vegetable barley soup recipe:

  • PEARL BARLEY: Pearl barley can be found in most well-stocked grocery stores or online. If using quick cooking barley, cook it separately, then add at the end. See the Frequently Asked Questions section below for further explanation.
  • BROTH: To control the sodium, I used low sodium vegetable broth in combination with water. I promise that the taste doesn’t suffer!
  • SWEET POTATO: I used a red-skinned (orange flesh) sweet potato, which is sometimes labeled as red-skinned yam at the grocery store. Peel and cut it into ¾-inch pieces. Hello, Vitamin C and beta carotene!
  • FROZEN GREEN BEANS: Why frozen? They don’t become overcooked in the crockpot.
  • OTHER VEGETABLES: A standard mirepoix combination – onion, carrots and celery.
  • SEASONING: Fresh garlic cloves, paprika, dried thyme, dried oregano, salt and pepper.
  • CANNED TOMATOES: Use one (14 ounce) can of petite diced tomatoes, including the liquid.

Tools you need:

SLOW COOKER: There are plenty of crockpots available in the stores and online. I like to use a digital programmable crockpot, like this one. The 8-quart capacity means you can make plenty of soup!

See recipe card below for full ingredients list & recipe directions.

Substitutions:

SWEET POTATO: Swap regular potatoes for the sweet potato. I like small yellow or red-skinned potatoes, but into quarters.
BARLEY: Try a different whole grain. Farro provides the same chewy texture as barley. Brown rice and quinoa are good gluten-free options.

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (2)

How to make crockpot vegetable soup:

You have to love when recipe instructions are only three steps long! Making vegetable soup in a crockpot is truly one of the easiest recipes you’ll ever prepare. There is a bit of chopping, but from there it’s all hands-off prep time.

PREP THE VEGGIES: Start by chopping the onion, carrots, celery and sweet potato, and mincing the garlic.

COMBINE AND COOK: Dump everything (except for the parsley) into the slow cooker. Vegetables, canned tomatoes, barley, broth and seasoning. Set the slow cooker to LOW (a nice gentle simmer), cover and cook for 8 hours, or until the barley is tender.

GARNISH AND SERVE: Last steps…stir in the parsley, taste for seasoning (and adjust as needed) and serve it up!

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (3)

What to serve with this vegetable barley soup recipe:

If I’m eating this soup for a light lunch, I’ll typically serve it alongside some whole grain crackers and hummus for an added boost of protein.

You could also add beans (still vegan) shredded rotisserie chicken (not vegan) to make a more hearty dinnertime meal for your family.

Soup is meant for dipping. Try a slice of Mushroom Rosemary Olive Oil Bread or Indian Spiced Chickpea Flatbread.

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (4)

Frequently Asked Questions:

Can I use quick cooking barley in this soup?

Pearl barley take significantly longer to cook than quick-cooking barley, so one is not easily swapped for the other in most recipes. If you only have the quick cooking variety, cook it separately in a pot, drain it, then stir it in the finished soup.

Is barley gluten-free?

Unfortunately, it isn’t. Brown rice or quinoa would be good substitutes in this recipe. If you prefer to add gluten-free pasta, turn the slow cooker heat to HIGH in the last 30 minutes of cooking and stir in the pasta.

What kind of vegetables are in a vegetable barley soup?

The beauty of a crockpot vegetable soup like this is that you can throw almost any vegetable into the mix, substituting your favorites for any of the ingredients listed. Use what's already in your fridge or freezer - frozen vegetables are great for slow cooker soups - so that you don't have to make a separate trip to the store.

I used sweet potato, carrots, onion, frozen green beans, celery and canned tomatoes, along with a scoop of pearl barley. If some of those ingredients don’t float your boat, feel free to make substitutions, such as broccoli, green peas, cabbage or zucchini.

Can I freeze barley soup?

Nothing makes me happier than when soup freezes well. It means we can eat our fill, then have enough for future meals. This recipe makes a ton of soup (11 cups) and is ideal for freezing.

Allow the soup to cool, then transfer it to a freezer safe airtight container (or multiple container, depending on how much soup is leftover), such as these glass ones. Freeze the soup for up to 3 months.

When ready to eat, defrost the soup in the refrigerator, then gently reheat it on the stove or in the microwave.

Printable Recipe

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (5)

Vegetable Barley Soup Recipe (Slow Cooker)

This Slow Cooker Vegetable Barley Soup recipe (vegan) couldn’t be easier. Just throw everything in the crockpot and walk away! Healthy, delicious and packed with nutrients.

4.63 from 108 votes

Print Pin Rate

Course: Soups

Cuisine: American

Keyword: Clean Eating, Healthy Dinners, Vegan, Vegetarian

Prep Time: 10 minutes minutes

Cook Time: 8 hours hours

Total Time: 8 hours hours 10 minutes minutes

Servings: 11 Cups

Calories: 164.7kcal

Author: Dara Michalski | Cookin' Canuck

Ingredients

Instructions

  • Combine all of the ingredients, except for the parsley, in a large (6-quart) slow cooker.

  • Cook on LOW until the barley is tender, about 8 hours.

  • Stir in the parsley. Serve.

Video

Notes

Please note that I am not a medical or nutritional professional. I provide nutritional information for my recipes as a courtesy to my readers. It is calculated using the LoseIt! calculator. While I attempt to provide information that is as accurate as possible, you should calculate the nutritional information independently before relying on it.

Nutrition

Serving: 1.75Cups | Calories: 164.7kcal | Carbohydrates: 34.6g | Protein: 4.5g | Fat: 0.7g | Sodium: 505.5mg | Fiber: 9g | Sugar: 8.5g

Tried this recipe?If you make this recipe, I'd love to see it on Instagram! Just use the hashtag #COOKINCANUCK and I'll be sure to find it.

This post originally published on January 6, 2016 and updated on October 20, 2022.

Disclosure: I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for me to earn fees by linking to Amazon.com and affiliated sites.

Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (6)
Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (2024)

FAQs

Does barley help thicken soup? ›

Yes! Barley holds a good amount of starch, which will release into the soup when it's cooked. That starch will help thicken the broth to leave you with a deliciously thick, creamy soup.

Does barley get soggy in soup? ›

Since the barley can absorb too much of the liquid when made ahead, and get mushy, I find it best to cook the barley separately. Make as directed, just omitting the barley.

How to stop a slow cooker from being watery? ›

Prop the lid up for evaporation.

While your dinner cooks, prop the lid open a bit so that moisture can escape and thicken the stew naturally without extending the cooking time too much. Skewers or chopsticks between the lid and the crock of the slow cooker work well for this.

Does soup taste better in slow cooker? ›

Slow cookers can transform a few simple ingredients into the most delicious soups by simmering them for hours. This low and slow cooking allows the flavors to mingle, creating rich, flavorful soups perfect for chilly days, nights, or any day you want to enjoy a bowl full of goodness.

Does barley need to be cooked before adding to soup? ›

Do you cook barley before adding it to soup? Your beef barley soup will simmer long enough to cook the barley. There is no need for the additional step of cooking the barley first.

Should barley be soaked before adding to soup? ›

Pearl barley does not need to be soaked prior to cooking because it cooks quickly. Hulled barley benefits from soaking in water for a few hours before cooking. However, you should still budget more time for the hulled grain to cook (about 35 to 40 minutes).

What happens if you don't rinse barley before cooking? ›

There is no need to rinse barley before using it. To enhance the flavor of barley, heat the kernels in a skillet for a few minutes or cook it in broth instead of water. You can save time by cooking extra barley and freezing it. Add it to soups or salads as you need it.

Can you overcook barley in soup? ›

Overcooked barley will become mushy, while undercooked may have a thicker and chewier texture. You can make barley as a side dish, but you can also cook it into your food. Feel free to cook our pearled barley in your favorite soup or stew, but be mindful that it will absorb a lot of liquid.

What happens if you don't soak barley? ›

The whole-grain barley soaked overnight cooked up the next day in 35 minutes (salting made no difference in timing or texture), while the cooked-from-dry grains took only five minutes longer. Flavor-wise, there wasn't much difference. The verdict? Don't bother soaking whole grains—the payoff is barley worth the effort.

Do I put water in the bottom of my slow cooker? ›

You DO NOT have to put water in your crockpot in order to use the liners, HOWEVER, it is HELPFUL if you are cooking certain foods for a long period of time(like set- up in the morning, then return after work) such as rice for instance, putting some water at the bottom of the slow cooker and the liner prevents the food ...

Should everything be submerged in a slow cooker? ›

Reduce liquid when using a slow cooker

It should just cover the meat and vegetables. Don't overfill your slow cooker, or it may start leaking out the top, and the food won't cook so well.

How long to leave soup in a slow cooker? ›

The general rule of thumb is that 2-4 hours is the maximum length of time you can leave food in a slow cooker on warm. After this, it needs to be cooled and transferred into the refrigerator.

How long can you leave soup in crockpot on low? ›

That varies by what's inside the slow cooker and also by the appliance's setting and model, the experts say. Most recipes for all-day cooking call for 6 to 8 hours on low. Quality- (and safety-) wise, another 1 to 2 hours in 'keep warm' mode won't mess things up.

Can you overcook vegetable soup in a slow cooker? ›

Can You Overcook Vegetable Soup In A Crock Pot? Yes, you can overcook it if you leave the soup longer than needed or set a high temperature. You must always check the settings during cooking. Be sure not to keep the heat on too high.

What is the purpose of barley in soup? ›

Barley's fiber content helps prevent constipation and promote regularity for a healthy digestive tract. Eating fiber-rich foods such as barley may also contribute to weight loss. This is because it functions as a “bulking agent” in the digestive system, making a person feel fuller for longer.

What is the best thickener for soup? ›

Add flour or cornflour

Put a tablespoon of either into a small bowl and stir in 2-3 tbsp of the soup until you have a smooth mixture. Stir this back into the soup and bring it to a simmer. Cook for a few minutes to allow the starch granules to burst to thicken, and to cook out any flour flavour.

Is barley a thickener? ›

Barley flour is used in baked goods and as a thickener for soups, stews and gravies.

What is best for thickening soup? ›

Add Flour Or Cornstarch

You can thicken soup by adding flour, cornstarch, or another starchy substitute. For the best results, never add flour or cornstarch directly to your soup. If you do, it will clump up on top. Instead, ladle a small amount of broth into a separate bowl and let it cool.

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