Roasted Vegetable Soup (Whole 30)

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Hearty roasted vegetable soup is a go-to for the cold winter months. Make a big pot and eat it all week long! 

Whole 30 Roast Vegetable Soup Recipe - inspired by minestrone

Over the past few months I’ve fallen into some really bad eating habits. Lots of take out, lots of carbs, LOTS of chocolate, and not nearly enough vegetables.

So, earlier this fall, I did a round of Whole 30 to get my eating back on track. It only took a few days of hearty kale salads and pan-roast pork chops with grapes before I felt like my old self again.

Whole 30 Roast Vegetable Soup Recipe - inspired by minestrone

This roast vegetable soup was my secret weapon to getting though the more difficult days. It was great for lunch, as an extra serving of vegetables with my dinner, or even as a filling snack. This soup was inspired by minestrone, but since pasta and potatoes aren’t allowed on Whole 30 I swapped them out in favor of potatoes. It was a delicious alternative, although a can of white beans would still feel right at home in this soup pot.

One of the things that I love most about roasted vegetable soup like this one, is that you can basically use whatever vegetables you have lurking in the depths of your refrigerator.

No fennel? Swap in cabbage.

Don’t like carrots? Leave them out.

Leftover greens from that kale salad I mentioned earlier? Go ahead and throw it into the pot.

Really, pretty much anything goes.

For this soup, I also tossed the potatoes, fennel, carrots, and zucchini in a little bit of olive oil, then roasted them in a hot oven just until they started to caramelize around the edges.  

This helps concentrate their flavor and give each bowl an extra layer of complexity. I also added a can of fire roasted tomatoes to the pot to add even more smokey, roasted flavor to the recipe.

Roasted Vegetable Soup (Whole 30) 2
Whole 30 Roast Vegetable Soup Recipe - inspired by minestrone

Roast Vegetable Soup (Whole 30)

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Course: Soups and Stews
Cuisine: American
Keyword: roasted vegetable soup
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 10 servings
Calories: 93kcal


  • 2 Potatoes peeled and diced
  • 1 Fennel Bulb chopped
  • 4 Carrots peeled and cut into coins
  • 1 Zucchini Squash chopped
  • 2 tablespoons Olive Oil divided
  • 4 cloves Garlic minced
  • 1 Onion diced
  • 4 stalks Celery chopped
  • 1 teaspoon Dried Thyme
  • 1 teaspoon Dried Oregano
  • 1 teaspoon Dried Basil
  • 28 ounce can Fire Roasted Diced Tomatoes
  • 6 cups Vegetable Broth or chicken broth


  • Heat your oven to 500°F.
  • Toss the potatoes, fennel, carrots, and zucchini in 1 tablespoon olive oil.
  • Spread the vegetables in a single layer on a baking sheet. Roast 15-20 minutes, turning once, until the vegetables begin to caramelize.
  • Heat the remaining oil in a large soup pot set over medium heat.
  • Add the garlic, onion, and celery. Cook 6-8 minutes, or until softened.
  • Stir in the spices. Add the roast vegetables, tomatoes, and broth.
  • Simmer 10 minutes, or until all the vegetables are cooked through.
  • Season to taste with salt and pepper.
Nutrition Facts
Roast Vegetable Soup (Whole 30)
Amount Per Serving (1 serving)
Calories 93 Calories from Fat 27
% Daily Value*
Fat 3g5%
Saturated Fat 0.5g3%
Polyunsaturated Fat 0.4g
Monounsaturated Fat 2g
Sodium 599mg26%
Potassium 436mg12%
Carbohydrates 16g5%
Fiber 3g13%
Sugar 5g6%
Protein 2g4%
Vitamin A 4463IU89%
Vitamin C 17mg21%
Calcium 40mg4%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
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Hi, I'm Lauren!

I'm a certified plant-based cook and enthusiastic omnivore who loves looking for creative ways to make weeknight meals more nutritious. I'm the author of Heathy Eating One Pot Cookbook and Healthy Meal Prep Slow Cooker Cookbook. I also blog at The Busy Foodie. Read more...


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6 thoughts on “Roasted Vegetable Soup (Whole 30)”

  1. This soup is delicious! I will be making this again and again! I think next time I may add in some chopped spinach at the very end.

    • Beans are definitely a great thing to add if you’re not worried about it being Whole 30 🙂

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