Easy Kale Soup

This Italian-style kale soup recipe with white beans is full of bold, Mediterranean flavor! Healthy, satisfying, and ready in just 30 minutes, it’s become a reader favorite.

Kale soup

Welcome to one of my favorite healthy soups that pleases everyone: kale soup! Kale, white beans and tomatoes float in a tangy broth flavored with oregano and fennel. It’s comforting and full of bold Mediterranean flavors.

I love that it comes together in just 30 minutes and makes a huge pot that’s great for leftover lunches. It really ticks all of my boxes when it comes to a soup recipe: healthy, easy, and tasty. Readers have been telling me they love to make this recipe again and again (music to my ears!).

Essential ingredients in kale soup

As a cookbook author and recipe developer, I’ve written dozens of soup recipes over the years. But this kale soup stands the test of time, in my opinion! Sip a spoonful, and you’ll be surprised by the pop of tangy flavor. Just a handful of ingredients work together to make a super flavorful broth that comes together quickly:

  • Kale: Use either Tuscan (aka lacinato kale) or curly kale.
  • Onion and carrot: These form the base of the aromatic vegetables.
  • Canned fire roasted tomatoes: I like to call for this type of tomato in my soup and sauce recipes because it has sweet, developed flavor right out of the can.
  • Vegetable broth: Veggie broth adds a nice savory flavor; you can also use chicken broth.
  • Canned or cooked white beans: Varieties that work well are cannellini, Great Northern, navy, or even butter beans.
  • Fennel seed, oregano, smoked paprika: These spices form a deliciously savory base.

5 star reader reviews

“This soup was amazing! So much flavor and soooo easy to make. It’s definitely making our list for go-to’s!” -Sommers

“Absolutely love this soup. I make this on repeat for my family.” -Kim

Kale Soup

Types of kale

There are a few main types of kale you can find at the grocery store. I like Tuscan kale best because of its mild flavor. Here are the different types of kale you’ll see:

  • Tuscan kale has dark green, flat leaves and a mellow flavor. It’s also sometimes called Lacinato or dinosaur kale. It’s common in Italian dishes like Tuscan kale salad or ribollita. It’s my preference in this kale soup.
  • Curly kale is brighter green and very curly. The flavor is bitter and spicy, which is why I usually prefer Tuscan kale. But it will still taste good here!
  • Baby kale is harvested before it’s full grown and often sold in boxes in grocery stores and farmer’s markets. It has a mild flavor and is more tender, so you don’t have to cook it as long.
Tuscan kale

Another flavor secret in this kale soup is fire roasted tomatoes, a type of canned tomato that’s roasted over a flame before canning. They’re sold by several different brands, and you can find them in the canned tomato section in your local grocery.

They taste mild and sweet out of the can, which makes you can cook them for less time than standard tomatoes. As a substitute, use highest quality canned tomatoes (like San Marzano tomatoes) and simmer the soup a few minutes longer. You can also add a pinch of smoked paprika and a pinch of sugar or honey to round out the flavors.

Serving suggestions that make a complete meal

This kale soup is done in 30 minutes, a great easy dinner idea or healthy lunch. Here are a few ways to accessorize it to make a meal:

Kale soup

Storing leftovers and reheating tips

This kale soup saves very well! After you make it, you can refrigerate for up to 3 days or freeze for up to 3 months. The flavor gets even better over time.

When reheating from the refrigerator, I add a splash of vegetable broth or water if the soup has thickened too much. Heat it gently over medium-low heat, stirring occasionally. From frozen, I thaw it overnight in the refrigerator before reheating.

Dietary notes

This kale soup recipe is vegetarian, vegan, plant-based, dairy-free and gluten-free.

Frequently asked questions

Can I use frozen kale for kale soup?

Yes, frozen kale works well in soup! No need to thaw it first – just add it directly to the pot.

Can you add other ingredients to kale soup?

Try adding sausage or chorizo to make it more filling, swapping out white beans for chickpeas, or finishing with a spritz of fresh lemon juice.

My soup tastes bitter — what should I do?

Add up to 1 teaspoon sugar, honey or pure maple syrup to balance the acidity and bitterness of the canned tomatoes.

How can I make this soup more filling?

Try serving it over cooked rice or pasta, or serving with substantial bread like focaccia or crusty sourdough.

Print

Easy Kale Soup

Kale soup

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 16 reviews

This Italian-style kale soup recipe with white beans is full of bold, Mediterranean flavor! Healthy, satisfying, and ready in just 30 minutes, it’s become a reader favorite.

  • Author: Sonja Overhiser
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes
  • Yield: 4 to 6 servings
  • Category: Soup
  • Method: Stovetop
  • Cuisine: Soup
  • Diet: Vegetarian

Ingredients

  • 2 tablespoons olive oil
  • 1 tablespoon salted butter (or olive oil)
  • 1 large white onion, diced
  • 1 medium carrot, peeled and diced
  • 2 28-ounce cans diced fire roasted tomatoes*
  • 4 cups vegetable broth
  • 2 15-ounce cans white beans, drained and rinsed
  • 1 ½ teaspoons dried fennel seed, crushed with fingers, divided
  • 1 teaspoon dried oregano
  • 1 teaspoon smoked paprika
  • 1 ½ teaspoon kosher salt, divided
  • 2 bunches Tuscan kale (or 1 large bunch curly kale), chopped
  • Shredded Parmesan or Pecorino Romano cheese for serving, optional

Instructions

  1. Prepare the onion and carrot as noted above.
  2. In a large pot or Dutch oven, heat the olive oil and butter (or all olive oil) over medium high heat. Add the onion and carrots and sauté for 5 to 7 minutes until tender.
  3. Add the diced tomatoes, vegetable broth and beans. Bring to a steady simmer, then add 1 teaspoon of the fennel seed, along with the dried oregano, smoked paprika and kosher salt. Simmer 12 minutes. (Meanwhile, chop the kale.)
  4. Add the kale and simmer additional 2 to 3 minutes until the kale is tender. Add the additional ½ teaspoon crushed fennel seed. Taste a cooled spoonful and add up to ½ teaspoon additional kosher salt (depending on the salt level of your broth and beans), until the flavor pops.
  5. Serve immediately with grated Parmesan or Pecorino Romano cheese. Store refrigerated for 3 days or frozen up to 3 months.

Notes

*If you can’t find fire roasted tomatoes, use the best canned tomatoes you can find. Add another ½ teaspoon smoked paprika and 1 teaspoon sugar, honey or maple syrup to round out the flavors.

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