Recipe

Swamp Soup

A one-pot sausage, beans, and greens soup with a garlicky broth, bright lemon, and plenty of comfort.

By Matt Campbell

•

4.8

A steaming bowl of swamp soup with sliced smoked sausage, white beans, and dark leafy greens in a rustic ceramic bowl on a wooden table with a spoon beside it

Let’s address the name. Swamp soup sounds like something you should avoid on a camping trip, not something you should make for dinner. But this is one of those delightfully unglamorous recipes that absolutely delivers: smoky sausage, creamy beans, and a whole lot of greens swimming in a broth that tastes like you actually tried.

This is my kind of weeknight soup. One pot. Simple ingredients. Big payoff. And yes, it turns gloriously green, which is kind of the point. If you have ever wanted a soup that feels cozy but still tastes bright and alive, this is it.

All swamp soup ingredients arranged on a light kitchen counter including smoked sausage, canned white beans, chicken broth, onion, garlic, leafy greens, lemon, and seasonings

Why It Works

Sausage does the heavy lifting. Browning it first builds the base flavor, and the drippings help the onions and garlic taste like they have been planning this soup all day. (Bonus: sausage brands vary in salt, so taste before you go big on seasoning.)
Beans make it feel creamy without cream. Mashing a portion of the beans thickens the broth so it is rich and spoon-coating.
Greens go in last. They stay tender and lively. The color will darken a bit as the soup sits, because greens are honest like that.
Lemon at the end wakes everything up. That little hit of acid makes the whole pot taste brighter and less heavy.

Pairs Well With

Storage Tips

Refrigerator: Cool completely, then store in an airtight container for up to 4 days. The soup will thicken as it sits. Add a splash of broth or water when reheating.

Freezer: Freeze in portioned containers for up to 3 months. Greens soften a bit after thawing, and the color will deepen, but the flavor is still great.

Reheat: Warm gently on the stove over medium-low, stirring occasionally. If the beans have thickened the soup a lot, loosen with broth. Finish with a fresh squeeze of lemon to bring it back to life.

Common Questions

Why is it called swamp soup?

Because it is unapologetically green. The “swamp” part is usually from spinach, kale, collards, or mixed greens simmered into the broth. The name is silly. The soup is not.

What greens work best?

Baby spinach is the quickest and mildest. Lacinato kale holds up and adds a little chew. Collards are more traditional in the sausage-and-greens family but need a longer simmer. If you use collards, slice them thin and simmer 15 to 25 minutes, until tender (young, thinly sliced collards land closer to 15).

Can I make swamp soup without sausage?

Yes. Swap the sausage for 1 to 2 tablespoons olive oil, add 1 teaspoon smoked paprika, and consider a splash of soy sauce or Worcestershire for savory depth. A can of diced tomatoes is also a solid flavor boost if you want it.

How do I make it thicker?

Mash more beans, simmer uncovered a few extra minutes, or add a small grated potato with the broth and let it cook until tender.

How do I make it less salty?

Use low-sodium broth, rinse the beans well, and taste before adding extra salt. If it is already too salty, add more unsalted broth or water plus another squeeze of lemon.

Will the greens stay bright green?

They will look vibrant right after cooking, especially spinach. Like most greens, they will darken a bit as the soup sits or gets reheated. Still delicious. Just less “freshly swampy.”

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Large Dutch oven or heavy-bottomed soup pot (5 to 7 quarts)
Cutting board and knife
Wooden spoon
Can opener
Ladle
Fork or potato masher (for mashing beans)

The first time I heard “swamp soup,” I laughed, then immediately wanted to know what it was. That is basically my entire cooking personality. I made a pot with whatever greens I had, browned some sausage until it got those crisp edges, and finished it with lemon like I was trying to impress someone. I was. It was me. Now it is one of my favorite clean-out-the-fridge soups that still tastes intentional.

Swamp Soup

(4.8 Reviews)

Prep Time 15 minutes

Cook Time 30 minutes

Total Time 45 minutes

Servings 6

Ingredients

1 tablespoon olive oil (optional, depending on sausage fat)
12 to 14 ounces smoked sausage or andouille, sliced into half-moons
1 medium yellow onion, diced
4 cloves garlic, minced
1/2 teaspoon kosher salt to start, plus more to taste
1/2 teaspoon black pepper
1/2 teaspoon crushed red pepper flakes (optional)
1 teaspoon smoked paprika
6 cups low-sodium chicken broth (or vegetable broth)
2 (15-ounce) cans cannellini beans or great northern beans, rinsed and drained
4 packed cups baby spinach or 3 cups chopped kale (stems removed)
1 tablespoon Dijon mustard
Zest and juice of 1 lemon (about 2 to 3 tablespoons juice)
Optional for serving: grated Parmesan, hot sauce, crusty bread

Sliced smoked sausage browning in a dark Dutch oven on a stovetop with golden edges forming

Instructions

Brown the sausage. Heat a large Dutch oven over medium-high. Add the sliced sausage and cook 4 to 6 minutes, stirring now and then, until browned and the edges are a little crisp. If the pot looks dry, add a small drizzle of olive oil.
Soften the aromatics. Add the diced onion and cook 3 to 4 minutes until softened. Add the garlic, 1/2 teaspoon salt, pepper, red pepper flakes (if using), and smoked paprika. Stir for 30 seconds, just until fragrant. (Sausage salt levels vary wildly, so we are starting cautious and finishing strong.)
Build the broth. Pour in the broth and scrape the bottom of the pot to lift any browned bits. Bring to a simmer. If the fond is getting very dark, lower the heat a bit while you deglaze so it stays toasty, not bitter.
Add beans and thicken. Stir in the beans. Mash about 1 cup of beans to thicken the soup. You can mash right in the pot, or scoop about a cup into a bowl, mash there, and stir it back in if that feels easier. Simmer 10 minutes.
Make it swampy. Add the spinach or kale and stir until wilted, 1 to 3 minutes for spinach or 3 to 5 minutes for kale.
Finish like you mean it. Stir in the Dijon, lemon zest, and lemon juice. Taste and adjust salt, pepper, and heat. If you want it brighter, add more lemon. If you want it richer, add a handful of Parmesan.
Serve. Ladle into bowls and top with Parmesan or hot sauce. Do not skip crusty bread if you can help it.

Nutrition information is estimated.

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Swamp Soup

Why It Works

Pairs Well With

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Storage Tips

Common Questions

Why is it called swamp soup?

What greens work best?

Can I make swamp soup without sausage?

How do I make it thicker?

How do I make it less salty?

Will the greens stay bright green?

Swamp Soup

Ingredients

Instructions