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)

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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)

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Reader Interactions

Comments

    Leave a Comment

  1. Pat

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (11)
    Made this today, it’s a rainy day in New Jersey and I needed some soup. I also added a handful of dried mixed mushrooms since I had those on hand. It just finished and it’s delicious. Thank you.

    Reply

    • Dara

      Mushrooms are a great addition! I'm so glad you enjoyed the soup.

      Reply

  2. Janice

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (12)
    Thank you!

    Reply

  3. Becky

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (13)
    So good! I added cooked quinoa at the end and a little frozen corn but followed otherwise. Perfect with grilled cheese!

    Reply

  4. Kate

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (14)
    We loved this! I added carrots and parsnips (because yum!). I may have cut too thin and my crockpot cooks quick but I did mine at 6 hours on low and it was perfect!

    Reply

  5. Trevor

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (15)
    Amazing recipe! Directions were easy to follow. Super easy to prepare and tasted amazing

    Reply

  6. Jayme S

    Slow Cooker Vegetable Barley Soup - Vegan Crockpot Recipe (16)
    I was looking for a replacement to Costco's (CedarLane) vegetable barley soup that it stopped carrying a few months ago. My husband and I are so pleased with this recipe!!! I put all the ingredients in my instant pot for 20 minutes as suggested by another person, and it turned out great!!

    Reply

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

FAQs

Does soup taste better in slow cooker? ›

You'll be rewarded with richer, more intense flavors in your soup. There is very little evaporation in the slow cooker. If you're adapting a regular soup recipe, it's likely that you won't need to use all the liquid called for. Put all your ingredients in the slow cooker and then pour the broth over top.

How do you keep barley from getting 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. Cool completely and refrigerate.

How long can I slow cook soup? ›

In general, it's best to stick to the indicated cook time on the recipe you're following. Most slow cooker meals take 8-12 hours on low or 4-6 hours on high, but there are also recipes for slow-cooked meat that take up to 24 hours.

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.

Do you stir soup in slow cooker? ›

For example, root vegetables like carrots and potatoes take the longest to cook, so put those in first. Follow it with meat and then everything else on top. Bonus: You don't have to stir, which makes cooking with a slow cooker even less effort.

Can you overcook soup in a slow cooker? ›

"When a slow cooker is too full, it may not heat the food evenly," explains Leal. As a result, some parts of the dish may overcook, while others remain undercooked. "This can also increase the risk of foodborne illness, because the food might not reach a safe temperature throughout," she says.

How can I deepen my soup flavor? ›

"If your broth is lacking in savory richness, try adding roasted onion, tomato paste, mushrooms, seaweed, soy sauce, or miso. These ingredients add umami flavor and depth to broth," she says. The choice of ingredient depends on the recipe, though.

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 you need to soak barley for soup? ›

Do you have to soak barley before cooking? 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? ›

Barley must be rinsed to remove any dust, dirt and debris just like you would with lentils for example. Preboiling removes any toxic substances that may be lurking on the barley and stops you from getting any of it.

Can I leave soup on low all day? ›

You can hold at 140 degrees for all day. If it's room temp you must refrigerate after 2hours and cool down fast !

Is 4 hours on high the same as 8 hours on low? ›

Low: 7-8 hours to reach the simmer point. High: 3-4 hours to reach the simmer point. If playback doesn't begin shortly, try restarting your device.

Can I leave my crockpot on while at work? ›

Are slow cookers safe to leave on? Yes, it's safe to leave a slow cooker on when you leave the house. The purpose of a slow cooker is to allow you to cook while you aren't home. Slow cookers simmer food slowly, killing bacteria and raising meat to the perfect internal temperature.

What is the difference between barley and pearl barley? ›

Hulled barley, considered a whole grain, has had just the indigestible outer husk removed. It's darker in color and has a little bit of a sheen. Pearled barley, also called pearl barley, is not a whole grain and isn't as nutritious. It has lost its outer husk and its bran layer, and it has been polished.

How do vegans thicken soup? ›

How to Thicken a Soup with Pureed Beans or Hummus. Blend 1½ cups cooked beans, lentils, or chickpeas with ½ cup water or broth until completely smooth. Add 2 tablespoons bean puree per 1 cup soup or stew, then stir until fully incorporated.

Is barley a protein or carb? ›

A one-cup serving of cooked, pearled, barley provides 193 calories, most of which are carbohydrates. You'll consume 44.3 grams of carbohydrates in a single serving, 6 grams of fiber, and 0.4 grams of naturally-occurring sugar. The rest of the carbohydrates in barley are starch.

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.

How long can you leave a slow cooker on low? ›

How to use a slow cooker
Oven or stovetopSlow cooker (high)Slow cooker (low)
15 – 30 minutes1 1/2 – 2 1/2 hours4 – 6 hours
30 – 45 minutes2 – 3 hours6 – 8 hours
45 minutes to 3 hours4 – 6 hours8 – 12 hours

What happens if you don't brown meat before a slow cooker? ›

Browning Is Better

And if you dredge the meat in flour before you brown it, your sauce will thicken up to make a gravy. You should always brown ground beef or any ground meat in a skillet before adding it to your slow cooker to prevent the meat from clumping up or from adding excess grease to your cooked dish.

Is it better to pressure cook or slow cook soup? ›

Slow cookers and pressure cookers come in a variety of sizes up to eight quarts, but pressure cookers need extra room inside the pot for the steam to accumulate, which limits the batch size. If you have a large family or plan on making soups and stews you can store for later, you may be better served by a slow cooker.

Does soup taste better the longer you cook it? ›

Bring everything to a boil, reduce the heat, and let simmer for at least 30 minutes. The longer the stock cooks, the more flavorful your soup will be.

Does food taste better in a slow cooker? ›

The longer cooking time and the low heat complement each other perfectly. As a result, even though the meat is cooked for far longer, it doesn't dry out because the temperature is low. As a result, this is the best way to retain all the natural juices of the meat. It also makes the meat far more flavorful.

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