Make This Easy Crock Pot Vegetable Soup

How to Make Hearty Vegetable Soup in a Slow Cooker

This easy crock pot vegetable soup is loaded with colorful veggies, pantry staples, and cozy flavor — the kind of “set it and forget it” dinner that makes the whole day feel easier. It’s naturally flexible, great for meal prep, and perfect for using up whatever vegetables you already have in the fridge.

Ingredients & Easy Add-Ins

This soup is flexible by design. Use the vegetables you have, then adjust seasonings at the end. If you want this to feel extra hearty, add beans and greens.

Vegetables & pantry staples

• Onion + garlic
• Carrots and celery
• Zucchini (optional): zucchini ideas here
• Other veggie options: green beans, bell pepper, broccoli, cauliflower, cabbage
• Canned tomatoes (whole, diced, or petite diced)
• Broth (vegetable or chicken)
• Seasonings (Italian seasoning, salt, pepper, etc.)

Optional add-ins (highly recommended)

• White beans (cannellini or great northern) for protein + creaminess
• Kale or spinach (stir in near the end)
• Potatoes (Yukon gold or red): dice small, add at the beginning

Quick Prep Tips

If mornings are chaos, do one of these:

• Night-before prep: Chop veggies and store in a container in the fridge.
• Freezer prep: Make a “soup kit” bag of chopped veggies (leave potatoes out, add fresh later).
• Shortcut: Use pre-chopped mirepoix (onion/celery/carrots) and add the rest.

Slow Cooker Instructions

Flavor tip: Sautéing some veggies and the garlic/tomatoes first gives you a richer, “simmered all day” taste with minimal extra work.

1. Sauté (optional, but best): In a skillet, sauté onion and garlic until fragrant. Add some veggies and cook 3–5 minutes to slightly soften.
2. Add to slow cooker: Transfer sautéed mixture to the crock pot.
3. Dump + stir: Add remaining vegetables, tomatoes, broth, and seasonings. Stir well.
4. Cook: Cover and cook until vegetables are tender.
5. Finish: Stir in beans/greens near the end. Taste and adjust salt/pepper.

Cook Times & Yield

• LOW: 6–8 hours
• HIGH: 3–4 hours

Yield: About 9 cups. A 6-quart slow cooker works great.

Flavor Boosters (Pesto + Beans!)

Reader comment spotlight (Jacci D): Add 1–2 tablespoons jarred pesto plus white beans for a “perfect flavor” upgrade. This is especially good if you want the soup to taste richer without adding meat.

• Pesto: Stir in 1–2 tablespoons at the end so it stays bright and herby.
• White beans: Add 1–2 cans (rinsed/drained). They make the broth feel more filling.
• Acidity: Add 1–2 teaspoons red wine vinegar or balsamic vinegar at the end to make flavors pop.
• Heat: A pinch of red pepper flakes adds warmth without making it “spicy.”

High-trust external resource: For safe fridge/freezer storage guidance, the USDA has a clear leftovers safety guide. USDA leftovers & food safety.

Instant Pot Instructions

Yes — you can make this as an easy vegetable soup in the Instant Pot too.

• Sauté onion/garlic (and a few veggies) using Sauté mode.
• Add remaining ingredients.
• Pressure cook on High for 6 minutes.
• Natural release 5–10 minutes, then quick release the rest.
• Stir, taste, and adjust salt/acidity.

How to Thicken Vegetable Soup

If you like a thicker soup, try one of these:

• Mash: Scoop out 1–2 cups (with veggies/beans), mash, then stir back in.
• Blend a small portion: Use an immersion blender briefly (leave plenty chunky).
• Slurry: Mix 1 tablespoon cornstarch + 1 tablespoon cold water, stir in, cook 10 minutes.

Storage & Freezer Tips

Refrigerate: Store in an airtight container for 4–5 days. The flavor gets even better overnight.

Freeze: Cool completely, then freeze up to 3 months. Thaw overnight in the fridge and reheat on the stove or microwave.

FAQ: Easy Crock Pot Vegetable Soup

Can I make this soup without sautéing?

Yes. You can dump everything into the crock pot and cook as directed. Sautéing just adds deeper flavor.

Can I add potatoes?

Absolutely. Yukon gold or red potatoes work best. Dice them small and add them at the beginning so they cook evenly.

What beans are best in vegetable soup?

White beans (cannellini or great northern) are mild, filling, and naturally creamy. Chickpeas and kidney beans also work.

How do I make it taste more flavorful?

Add pesto, a splash of vinegar, extra garlic, or red pepper flakes. Also, taste at the end and adjust salt (it matters a lot with soups).

Can I freeze crock pot vegetable soup?

Yes. Cool completely, freeze up to 3 months, thaw overnight, and reheat.

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Easy Crock Pot Vegetable Soup Recipe

Hearty, healthy, and flexible veggie soup. Includes slow cooker + Instant Pot instructions, storage, and variations.

4.50 / 5 ( 2 Reviews )

Print Rate

Prep Time: 15 minutes minutes

Cook Time: 7 hours hours

Total Time: 7 hours hours 15 minutes minutes

Serves: 6

Adjust Servings: 6

US CustomaryMetric

Equipment

• Large skillet
• Slow Cooker
• Pressure Cooker

Ingredients

• 2 tablespoons olive oil divided
• 1 medium onion chopped
• 4 medium carrots peeled and sliced
• 2 stalks celery sliced
• 28 ounce can whole peeled tomatoes or diced tomatoes
• 1 tablespoon minced garlic
• 2 cups fresh kale thinly sliced
• 1 can cannellini or great northern beans drained and rinsed
• 32 ounces vegetable broth
• ½ tablespoon dried thyme
• 1 teaspoon Italian seasoning
• 1 bay leaf
• salt and pepper
• 1 teaspoon red wine vinegar or balsamic vinegar

Instructions

• In a large skillet over medium heat, add 1 tablespoon oil. Then add onion, carrots, and celery, and saute for 5 minutes, stirring occasionally. Transfer veggie mixture to large slow cooker.
• Add another 1 tablespoon oil to same skillet, then add contents of can of tomatoes and garlic. Cook for about 3 minutes, while breaking up the tomatoes into small pieces. Transfer tomato mixture to slow cooker.
• Add the kale, beans, broth, thyme, Italian seasoning, bay leaf, 1/2 teaspoon salt, 1/2 teaspoon pepper to the slow cooker, stir, then cook 6-7 hours on low, or about 4 hours on high, until veggies are tender.
• Remove bay leaf. Stir in the vinegar. Season with additional salt and pepper, to taste, and serve.

Instant Pot

• Saute onion, carrots, and celery in the Instant Pot on saute setting, about 5 minutes. Add the tomatoes and garlic and saute another 3 minutes or so.
• Add the kale, beans, broth, thyme, Italian seasoning, bay leaf, 1/2 teaspoon salt, 1/2 teaspoon pepper to the pot and stir. Press the manual button and cook high pressure for 6 minutes, then let naturally release for 5-10 minutes.
• Remove bay leaf. Stir in the vinegar. Season with additional salt and pepper, to taste, and serve.

Nutrition

Calories: 197kcal | Carbohydrates: 32g | Protein: 8g | Fat: 6g | Sodium: 846mg | Fiber: 7g | Sugar: 7g

Recipe Adapted From: Mashup Mom