Hearty Tuscan Kale and White Bean Soup Recipe

If you’re searching for a healthy vegan Tuscan kale soup, this is an easy, satisfying recipe to try.

Using a full bunch of Tuscan (lacinato) kale and simple pantry staples, you can make a cozy bowl of vegetable-packed Tuscan kale soup that’s nourishing and filling.

Diced tomatoes, onion, carrots, celery, dried herbs and brown rice form a straightforward base with surprisingly rich flavor. Enjoy the soup as written or customize it with the substitution ideas below.

Tuscan kale soup in a bowl with a serving spoon and lemon.

Soup is always comforting, and even as the weather warms I love a bowlful of simple, vegetable-forward broth. With my garden overflowing with greens, Tuscan kale felt like the perfect star for this recipe.

This style of soup feels like a classic rustic Italian dish: modest ingredients, lots of flavor, and meant to be nourishing. The soffritto of carrots, celery and onion forms a flavorful foundation while the tomatoes and herbs create a warm, savory broth.

I add brown rice for body, but you can swap orzo, ditalini or another small pasta if you prefer. The recipe is flexible and forgiving.

Ingredients to make Tuscan kale soup - Tuscan kale leaves, broth, diced tomatoes, yellow onion, celery, carrots, brown rice, herbs and spices.

Ingredients to make this easy kale soup

These are the basic ingredients for the recipe. See the substitutions section for ways to adjust to what you have on hand.

1 tablespoon extra virgin olive oil
1 large yellow onion, chopped
3 large carrots, chopped
3 celery ribs, chopped
1 tablespoon minced garlic
1 teaspoon dried basil
1 teaspoon dried parsley
1 teaspoon dried oregano
1 teaspoon kosher salt, plus more to taste
1/4 teaspoon red pepper flakes (optional)
1 (15-ounce) can diced tomatoes (regular or fire-roasted)
6 cups vegetable broth (or 4 cups broth + 2 cups water)
1/2 cup brown rice
1 bunch Tuscan (lacinato) kale, ribs removed and roughly chopped
Juice of half a lemon (about 2 tablespoons)

A pot of healthy vegetarian kale soup with brown rice.

How to make Tuscan kale soup

1. In a large pot, heat the olive oil over medium heat. Add the chopped onion, carrots, celery, dried herbs, red pepper flakes and salt. Sauté, stirring occasionally, for about 10 minutes until the vegetables have softened and begun to caramelize.

2. Add the minced garlic and cook for another minute until fragrant.

3. Pour in the diced tomatoes and the vegetable broth, then add the brown rice. Stir, bring the mixture to a boil, then reduce heat to a simmer. Cover and cook until the rice is tender, about 25 minutes.

4. Remove the lid and stir in the chopped Tuscan kale. Cook until the kale is wilted, about 2–4 minutes. Turn off the heat, stir in the lemon juice, taste and adjust seasoning with salt and pepper, then serve hot.

Vegetarian Tuscan kale soup with brown rice in a serving bowl.

Tips for the best-tasting kale soup

Use a flavorful broth. Vegetable stock adds depth; homemade stock is ideal if available.
Sauté the soffritto (onion, carrot, celery) long enough for gentle caramelization—10 minutes or longer if you have the time—to develop richer flavor than simply boiling the vegetables.
Fire-roasted diced tomatoes add extra smokiness and depth without heat. If you prefer no heat, omit the red pepper flakes.
Finish with fresh lemon juice. The acid brightens the soup and balances savory flavors. If you don’t have lemon, a splash of apple cider or red wine vinegar will work.

Simple Tuscan kale soup with carrots, onions, celery, diced tomatoes and brown rice in a bowl with a spoon.

Substitution ideas for this vegetarian kale soup

This soup is very adaptable. Here are some easy swaps and additions:

Add white beans—canned cannellini or great northern beans make it heartier. Stir rinsed beans in with the kale near the end of cooking.
Swap the brown rice for up to 1/2 pound of small pasta shapes (ditalini, elbows, orecchiette). Note pasta cooks faster than brown rice; add it later so it doesn’t overcook. Other grains like farro, barley, millet or buckwheat also work.
Swap the greens—spinach, Swiss chard, curly kale or other sturdy greens can replace Tuscan kale if needed.
Make it meaty—brown Italian sausage first to create a classic zuppa toscana variant. This turns the soup non-vegetarian but adds savory richness.
Create a creamy version—stir in a little cream or plant-based milk at the end. For a thickened vegan option, whisk plant milk with cornstarch or tapioca starch before adding.
Add fresh herbs—torn basil, parsley or oregano added at the end brightens the finished bowls.

A pot of Tuscan kale soup with added white beans and ladle on the side.

What to serve with this Tuscan kale soup

Serve the soup with crusty bread—torn baguette or sourdough are perfect for dipping. Vegan gluten-free cornbread, oat bread, cheesy zucchini bread or air-fried zucchini chips also pair nicely. Roasted or air-fried eggplant makes a flavorful Mediterranean side.

Is Tuscan kale soup keto or paleo?

Omit the brown rice to lower the carbs. Adding sausage increases fat and protein, bringing the recipe closer to a keto-style dish. Without rice (and with compliant ingredients), the soup can also fit a Whole30 or paleo-style meal.

Simple kale soup recipe using Tuscan kale, diced tomatoes, carrots, celery, onion, garlic and brown rice finished with fresh lemon juice.

How to store and freeze kale soup

Refrigerate leftovers in an airtight container for up to a week.

To freeze, cool the soup and transfer to freezer-safe containers or bags. Remove excess air if using bags and lay flat to save space. The soup keeps 2–3 months frozen.

When reheating, warm gently on the stove or in the microwave. If the soup contains pasta or rice, they will absorb liquid as it sits—add extra broth or water when reheating to restore the desired consistency.

More delicious soup ideas to try

Instant Pot bean soup, lentil vegetable soup, mung bean vegetable soup, and spicy chicken lime soup are all great options when you want variety.