This hearty vegetable soup is a simple, healthy, and comforting meal perfect for any day of the week. By utilizing your slow cooker, you can easily develop deep, rich flavors while letting the vegetables tenderize to perfection. It is a nutritious, low-fat option that serves as a fantastic foundation for a balanced lunch or dinner.

List of ingredients
- 2 tablespoons extra virgin olive oil
- 1 yellow onion, diced
- 4 carrots, peeled and sliced into rounds
- 3 celery ribs, sliced
- 4 cloves garlic, minced
- ยผ cup chopped fresh parsley
- 28-ounce can diced tomatoes, undrained
- 3 cups diced potatoes, peeled and diced into small cubes
- ยฝ medium zucchini, chopped
- 2 cups frozen or fresh green beans, ends trimmed and chopped
- 2 tablespoons tomato paste
- 2 bay leaves
- 1 teaspoon paprika
- ยพ teaspoon sea salt
- ยฝ teaspoon dried thyme
- ยฝ teaspoon dried basil
- ยฝ teaspoon dried oregano
- ยผ teaspoon fresh ground pepper
- 8 cups low-sodium vegetable broth
- 1 cup frozen or fresh corn kernels
step-by-step instructions
- Step: Chop veggies.
- Step: Heat your olive oil in a large skillet over medium-high heat.
- Step: Add chopped onions, carrots, and celery; cook for 4-5 minutes until soft. Next, stir in garlic and parsley and cook for an additional 30-seconds.
- Step: Remove the pan from the heat and place cooked veggies in the crock of your 6-quart, or larger, slow cooker.
- Step: Add diced tomatoes, potatoes, green beans, zucchini, tomato paste, bay leaves, paprika, salt, pepper, thyme, basil, oregano, and vegetable broth to the crockpot. Gently stir until ingredients are combined.
- Step: Place the cover on and cook on LOW for 6 hours, or cook on HIGH for 3 hours.
- Step: If using, stir in the corn the last 30 minutes of cooking.
- Step: When finished cooking, discard the bay leaf and add additional salt and pepper if needed. Place the soup into bowls and squeeze some fresh lemon juice over the top.
Helpful Preparation Techniques
Uniform Vegetable Chopping
Consistent chopping is vital for a soup where everything cooks at the same time. Aim to cut your starchy potatoes into smaller, half-inch cubes so they soften at the same rate as the faster-cooking zucchini and green beans. Keeping your vegetables relatively uniform ensures you get a balanced spoonful every time.
Batch Cooking for Busy Weeks
Since this soup stores exceptionally well, it is an ideal candidate for meal prepping on a Sunday. By preparing the ingredients and even pre-sautรฉing the aromatic base the night before, you can assemble the entire pot in minutes the following morning. Having a ready-made healthy meal waiting for you makes the transition from a long workday much easier.
Enhancing Savory Depth
If you find the base broth needs more complexity, try incorporating a parmesan cheese rind directly into the slow cooker while it simmers. The rind will melt slowly into the liquid, adding a subtle saltiness and umami depth without the need for excessive salt. Be sure to remove any remaining rind before serving the final soup.
Managing Vegetable Textures
To prevent your more delicate vegetables from becoming overly soft, add them slightly later if you prefer a firm bite. For instance, if you are using summer squash or soft zucchini, consider adding these items only in the final hour of the cooking process. This preserves the structural integrity of the produce while still allowing the flavors to meld fully into the broth.
Customization and Flavor Variations
Adding Protein Sources
While this recipe is naturally vegetarian, it can be easily adapted to include more protein if desired. You can stir in a pound of pre-cooked lean ground beef or cooked white beans, such as cannellini or Great Northern beans, toward the end of the cooking cycle. These additions turn the light vegetable soup into a more robust and satiating main course.
Introducing Aromatic Variety
The herb profile can be shifted depending on your pantry availability or preference. While the blend of thyme, basil, and oregano is classic, you might experiment with dried rosemary or a pinch of red pepper flakes for a subtle heat. Adding celery salt instead of plain sea salt can also introduce a unique, concentrated flavor boost that highlights the base aromatics.
Playing with Textural Elements
If you prefer a thicker, heartier meal, try stirring in a cup of cooked grains like quinoa or brown rice just before serving. These ingredients absorb the flavorful broth and add a pleasant, chewy texture that contrasts with the tender vegetables. This is a clever way to stretch a smaller portion of soup into a much larger, more filling family meal.
Storage and Reheating Guidelines
Refrigeration Best Practices
Store your leftovers in an airtight glass or plastic container to ensure they remain fresh throughout the week. This soup will maintain its quality in the refrigerator for up to five days, often tasting even better on the second or third day as the herbs fully penetrate the vegetables. Always allow the soup to cool slightly before placing the lid on to avoid excess condensation.
Freezer Storage Methods
This soup is a perfect candidate for long-term storage in the freezer for up to three months. To maximize freezer space and ensure efficient thawing, use heavy-duty gallon-sized freezer bags. Pour the cooled soup into the bags, remove as much air as possible, and lay them flat on a tray until frozen solid; once solid, they can be stacked vertically to save significant room.
Safe Reheating Techniques
When you are ready to enjoy your frozen portions, thaw the soup in the refrigerator overnight to ensure even heating. Reheat individual servings in the microwave for one to two minutes, stirring halfway through to distribute the heat, or bring the desired amount to a gentle simmer in a small saucepan over medium heat for about 15 minutes. Ensure the soup reaches a piping hot temperature before serving.
Answers to Common Cooking Questions
Can I add pasta to this soup?
Yes, you can certainly add pasta to turn this into a vegetable minestrone-style soup. Simply add about 8 ounces of dry small-shaped pasta, such as shells or bow-ties, to the crockpot during the last 20 to 25 minutes of the cooking cycle. Ensure there is enough liquid in the pot, as the pasta will absorb quite a bit of broth while cooking.
How can I make this soup spicy?
If you prefer a soup with a bit of a kick, you can introduce heat through several simple methods. Finely chopped jalapeรฑo peppers added during the sautรฉing stage provide a fresh, vibrant heat, while a half-teaspoon of crushed red pepper flakes added at the start of the cooking process offers a more lingering, dry warmth. You can also finish the soup with a dash of your favorite hot sauce at the table.
What should I serve as a side dish?
A slice of crusty artisan bread or a warm, toasted piece of garlic sourdough makes an excellent accompaniment for dipping into the broth. If you prefer a lighter side, a simple side salad with a lemon vinaigrette mirrors the acidic notes in the soup. For an even more substantial meal, a baked potato or a small bowl of cooked grains served alongside creates a balanced and satisfying dining experience.
Print
Wholesome Crock Pot Vegetable Soup
- Total Time: PT375M
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
This easy, healthy Crock Pot Vegetable Soup is hearty and delicious. Itโs a low-fat, gluten-free crockpot soup recipe packed with tender veggies and plenty of rich, comforting flavor.
Ingredients
- 2 tablespoons extra virgin olive oil
- 1 yellow onion, diced
- 4 carrots, peeled and sliced into rounds
- 3 celery ribs, sliced
- 4 cloves garlic, minced
- ยผ cup chopped fresh parsley
- 28-ounce can diced tomatoes, undrained
- 3 cups diced potatoes, peeled and diced into small cubes
- ยฝ medium zucchini, chopped
- 2 cups frozen or fresh green beans, ends trimmed and chopped
- 2 tablespoons tomato paste
- 2 bay leaves
- 1 teaspoon paprika
- ยพ teaspoon sea salt
- ยฝ teaspoon dried thyme
- ยฝ teaspoon dried basil
- ยฝ teaspoon dried oregano
- ยผ teaspoon fresh ground pepper
- 8 cups low-sodium vegetable broth
- 1 cup frozen or fresh corn kernels
Instructions
- Step: Chop veggies.
- Step: Heat your olive oil in a large skillet over medium-high heat.
- Step: Add chopped onions, carrots, and celery; cook for 4-5 minutes until soft. Next, stir in garlic and parsley and cook for an additional 30-seconds.
- Step: Remove the pan from the heat and place cooked veggies in the crock of your 6-quart, or larger, slow cooker.
- Step: Add diced tomatoes, potatoes, green beans, zucchini, tomato paste, bay leaves, paprika, salt, pepper, thyme, basil, oregano, and vegetable broth to the crockpot. Gently stir until ingredients are combined.
- Step: Place the cover on and cook on LOW for 6 hours, or cook on HIGH for 3 hours.
- Step: If using, stir in the corn the last 30 minutes of cooking.
- Step: When finished cooking, discard the bay leaf and add additional salt and pepper if needed. Place the soup into bowls and squeeze some fresh lemon juice over the top.
Notes
Make sure to dice your potatoes small to cook at the same rate as the softer vegetables. Cut other vegetables into large pieces so they donโt turn to mush. Store in an airtight container in the refrigerator for up to 5 days or freeze for up to 3 months.
- Prep Time: PT15M
- Cook Time: PT360M
- Category: Soup
- Method: Slow Cooker
- Cuisine: American
Nutrition
- Serving Size: 1 bowl
- Calories: 180 kcal
- Sugar: 8 g
- Sodium: 424 mg
- Fat: 4 g
- Saturated Fat: 1 g
- Unsaturated Fat: 3 g
- Trans Fat: 0 g
- Carbohydrates: 34 g
- Fiber: 7 g
- Protein: 6 g
- Cholesterol: 0 mg