This Instant Pot vegetable soup is simple, healthy, and ready in about 30 minutes. Carrots, celery, potatoes, cabbage, and zucchini simmer in a smoky tomato broth under pressure, so you get a hearty bowl without hours at the stove. It works in winter as a warming dinner and in summer as a lighter meal, and it is easy to adapt to whatever vegetables you have.
At Sista Recipes, we like cooking that fits into a busy schedule. This soup is quick to prepare, made with affordable ingredients, and endlessly customizable. If you like soups that turn leftovers into a meal, try this Chicken Taco Soup for a leaner meal too.
Why Make This Soup in the Instant Pot?
Speed is the biggest advantage. A soup that would simmer for an hour on the stove is done after 10 minutes under pressure, and you only need one pot. Pressure cooking also keeps the vegetables from sitting in boiling water for a long time, so they hold their color and flavor.
You also get to walk away. Once the lid is locked and the timer is set, you can prepare a salad or set the table. The only thing to watch is timing: the vegetables here are cut in bite-sized pieces so they turn tender without falling apart.
What Makes This Vegetable Soup Special
- Healthy: Carrots, celery, zucchini, and cabbage give you fiber and vitamins in every bowl.
- Plant-based: Made with vegetable broth, it suits vegetarians and vegans.
- Hearty and budget-friendly: Potatoes make it filling, and every ingredient is easy to find at a regular grocery store.
- Flexible: Swap vegetables with the seasons, or add beans or lentils for protein.
Ingredients and Substitutions
Prep time: 15 minutes | Pressure cook time: 10 minutes | Serves: 6
| Ingredient | Quantity | Substitution Ideas |
|---|---|---|
| Olive oil | 1 tbsp | Avocado oil or coconut oil |
| Onion | 1 large, diced | Shallots or leeks |
| Garlic | 3 cloves, minced | Garlic powder (1 tsp) |
| Carrots | 2 large, sliced | Parsnips or sweet potatoes |
| Celery | 2 stalks, sliced | Fennel or bok choy |
| Cabbage | 2 cups, chopped | Kale, spinach, or Swiss chard |
| Potatoes | 2 medium, cubed | Turnips, rutabaga, or cauliflower |
| Zucchini | 1 medium, sliced | Yellow squash or eggplant |
| Diced tomatoes | 1 can (14 oz) | Fresh tomatoes, chopped (about 4 medium) |
| Vegetable broth | 6 cups | Chicken broth (for a non-vegetarian version) |
| Smoked paprika | 1 tsp | Regular paprika with a pinch of cumin |
| Dried oregano | 1 tsp | Italian seasoning or thyme |
| Bay leaf | 1 leaf | Omit, or finish with fresh parsley |
| Salt and pepper | To taste |
Seasonal vegetables are an easy way to change the soup: butternut squash in the fall or green beans in the spring both work well. For extra warmth, add a little turmeric, or add red pepper flakes if you like heat.
How to Make Instant Pot Vegetable Soup
- Prep the vegetables. Dice the onion, mince the garlic, slice the carrots, celery, and zucchini, cube the potatoes, and chop the cabbage into bite-sized pieces.
- Sauté the aromatics. Set the Instant Pot to “Sauté” and heat the olive oil. Cook the onion and garlic, stirring often, for about 2 minutes, until fragrant and slightly softened. This builds the flavor base of the soup.
- Add the vegetables and spices. Add the carrots, celery, potatoes, and cabbage, then sprinkle in the smoked paprika, oregano, salt, and pepper. Stir for a minute so the vegetables are coated in the spices.
- Add the liquid. Pour in the vegetable broth and the diced tomatoes with their juice, then add the bay leaf. Place the zucchini on top without stirring. The broth should just cover the vegetables.
- Pressure cook. Close the lid, set the valve to “Sealing,” and cook on high pressure for 10 minutes. When the timer ends, use a quick release to stop the cooking right away.
- Finish. Remove the bay leaf, stir, and taste. Add more salt if needed, a squeeze of lemon juice for brightness, and fresh parsley. For a thicker soup, blend about a third of it and stir it back in.
Recipe Tips and Variations
- Boost the flavor: Stir in a splash of balsamic vinegar or sprinkle grated Parmesan on top before serving.
- Add protein: Chickpeas, white beans, or cooked lentils make the soup more filling.
- Spice it up: Add red chili flakes or cayenne for heat.
- Make it creamy: Blend the whole soup, or stir in a spoonful of coconut cream for a velvety texture.
Serving Suggestions
The soup is satisfying on its own, and a few sides turn it into a full meal:
- Crusty bread: A warm slice of sourdough or French bread is perfect for soaking up the broth.
- Grain salads: A light quinoa or bulgur salad pairs well with it.
- Protein sides: Grilled chicken, tofu, or a boiled egg add extra staying power.
It also works well for meal prep: make a batch on Sunday and take it for lunches during the week.
Storage and Reheating Tips
- Refrigerator: Cool the soup, then store it in an airtight container for 3 to 4 days, in line with the USDA cold food storage guidelines.
- Freezer: Freeze individual portions for up to 3 months. Thaw them in the fridge overnight.
- Reheating: Warm on the stovetop over medium heat, stirring occasionally, or microwave in 1-minute intervals, stirring between each, until steaming hot.
Nutritional Benefits
This soup is low in calories and high in fiber. Carrots provide beta-carotene, cabbage adds antioxidants, and zucchini contributes potassium. A serving comes to roughly 160 calories (an estimate that varies with your ingredients and portion size), which makes it an easy choice for a light meal.
Seasonal Vegetable Options
Using vegetables in season keeps the soup fresh and often costs less. Here is a quick guide:
- Winter: Turnips, kale, and parsnips.
- Spring: Asparagus, peas, and tender greens.
- Summer: Tomatoes, corn, and bell peppers.
- Fall: Butternut squash, sweet potatoes, and leeks.
Related Recipes
- Another hearty soup: Chicken Taco Soup for a leaner meal.
- Use up leftovers with these leftover rotisserie chicken recipes.
- For a richer side, try this Smoked Mac and Cheese.
FAQs
What setting should I use on the Instant Pot for soup?
Use the “Pressure Cook” or “Manual” setting on high pressure, as in this recipe. If your model has a “Soup/Broth” button, you can use it, but check the cooking time against the recipe.
Can you overcook soup in an Instant Pot?
Yes. Delicate vegetables like zucchini or leafy greens can turn mushy if cooked too long. Stick to the recommended time and use a quick release to stop the cooking right away.
How long do you cook vegetables in an Instant Pot?
Hearty vegetables like carrots and potatoes need about 5 to 10 minutes of pressure cooking. Softer vegetables such as zucchini or spinach can go in after pressure cooking, or cook for only 1 to 2 minutes.
Conclusion
This Instant Pot vegetable soup is a quick way to get a healthy, warming meal on the table. Chop the vegetables, press a few buttons, and dinner is ready in about 30 minutes. Make it your own with the vegetables and spices you like, and keep a few portions in the freezer for busy days.