How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Slow Cooker Vegetable Soup?

You need 16 ingredients. The key ingredients include: 6 cups vegetable broth, 1 (16 ounce) package frozen mixed vegetables, 1 (14.5 ounce) can diced tomatoes, undrained, 2 potatoes, peeled and cubed, and more.

Is Slow Cooker Vegetable Soup suitable as soups & stews?

Yes, Slow Cooker Vegetable Soup falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Vegetable Soup?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Slow Cooker Vegetable Soup Recipe

Name: Slow Cooker Vegetable Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 cups vegetable broth; 1 (16 ounce) package frozen mixed vegetables; 1 (14.5 ounce) can diced tomatoes, undrained; 2 potatoes, peeled and cubed; 1 large onion, diced; 1/2 cup barley; 3 cloves garlic, minced; 1 teaspoon dried parsley; 1 teaspoon dried oregano; 1/2 teaspoon dried basil; 1/2 teaspoon salt; 1/2 teaspoon ground black pepper; 1 bay leaf; 2 cups all-purpose flour; 1/4 cup vegetable shortening (such as Crisco(R)); 1/4 cup vegetable broth, or more if needed

Warm up with this hearty Slow Cooker Vegetable Soup recipe. Made with vegetable broth, mixed vegetables, tomatoes and potatoes. Easy step-by-step instru…

This Slow Cooker Vegetable Soup relies on simple, everyday ingredients such as vegetable broth, potatoes, peeled and cubed, large onion, diced and barley. It comes together quickly and makes 4 servings, at about 301 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Slow Cooker Vegetable Soup

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions