Eazy Healthy Kale Lentil Sweet Potato Soup

May 18, 2025

Creamy Kale Lentil Sweet Potato Soup in Dutch Oven – Cozy Vegan One-Pot Dinner

The baby was crying, the third grader needed help with math homework, and I had exactly one sweet potato, half a bag of kale, and zero energy left to figure out dinner. But as soon as the garlic hit the hot olive oil and that cozy, cumin-laced aroma filled the kitchen, I knew exactly what to make.

This kale lentil sweet potato soup has saved my weeknight dinners more times than I can count. It’s the kind of warm, nourishing bowl that makes you feel like you’ve got it all together even when the laundry pile says otherwise.

The sweetness of roasted sweet potatoes, the earthiness of brown lentils, and the tender bite of kale all come together in a way that feels both hearty and healthy. Add a splash of lemon at the end, and suddenly it’s not just dinner it’s comfort, it’s calm, it’s one bowl closer to bedtime.

Why You’ll Love This Kale Lentil Sweet Potato Soup

This isn’t just another lentil soup it’s a creamy, cozy, weeknight lifesaver made from pantry staples and a few fresh veggies. It checks every box for a busy mom: one pot, nourishing, budget-friendly, and picky-eater approved.

The sweet potatoes add that melt-in-your-mouth softness, while canned lentils bring protein and heartiness without the wait. Kale folds in at the end, giving every spoonful a fresh, earthy finish.

But what really makes this kale lentil sweet potato soup stand out is the peanut butter. Just a third of a cup turns the broth creamy, rich, and just a little nutty like something you’d get at a cozy café, but made in your own kitchen.

It’s vegan, gluten-free, meal-prep friendly, and honestly, the kind of recipe that makes you feel like you’re totally winning dinner.

How to make Kale Lentil Sweet Potato Soup

A bowl of kale lentil sweet potato soup with colorful vegetables and a spoon
A warm, veggie-packed bowl of kale lentil sweet potato soup ready to serve

Ingredients for Peanut Butter Kale Lentil Sweet Potato Soup

You’ll find the exact quantities and instructions below in the printable recipe card.

To build the rich, satisfying layers of this kale lentil sweet potato soup, we’re starting with a base of everyday, budget-friendly ingredients but trust me, the flavor is anything but basic.

It starts with a drizzle of olive oil, warming up in your favorite soup pot. Then comes the trio that makes every kitchen smell like home: one diced yellow onion, four minced garlic cloves, and a splash of veggie stock to deglaze.

We add a full can of brown lentils (about 540 mL), already cooked and rinsed, for plant-based protein that’s both hearty and comforting. The sweet potato brings natural creaminess, while carrots and red bell pepper add a subtle sweetness and bright color that even little ones tend to love.

A large can of diced tomatoes (796 mL, no salt added) gives us a luscious, tangy base. Then comes the twist: 1/3 cup of creamy peanut butter yes, peanut butter melts into the soup and adds a nutty depth that turns the whole pot silky and luxurious.

For seasoning, we keep it simple but bold: chili powder, chili flakes, salt, and fresh ground pepper to taste. Finally, two big handfuls of chopped kale are stirred in at the end, just enough to soften without losing their vibrant green.

With 4.5 cups of vegetable stock to bring it all together, this one-pot wonder is exactly what busy weeknights were made for.

Step-by-Step Instructions

Step 1 – Sauté your base

Heat 1 tablespoon of olive oil in a large soup pot or Dutch oven over medium heat. While it’s warming, dice your yellow onion, carrots, sweet potato, and bell pepper. No need for perfection just aim for even, bite-sized chunks so they cook at the same pace.

Toss the chopped veggies into the pot with a pinch of salt and a few twists of black pepper. Let them sauté for about 6–8 minutes, stirring occasionally, until everything begins to soften and your kitchen smells like the start of something delicious.

Step 2 – Add flavor depth

Now stir in your four minced garlic cloves. Let them sizzle just a minute long enough to release their aroma, but not brown. Add 2 teaspoons of chili powder and ½ teaspoon of chili flakes. Give everything a good stir to coat the vegetables in those cozy, toasty spices.

Step 3 – Pour in the heart of the soup

Add the full can of diced tomatoes (796 mL), followed by the drained and rinsed can of lentils (540 mL). Then pour in 4.5 cups of vegetable stock. Stir well to combine, making sure nothing’s sticking to the bottom.

Bring everything to a gentle boil, then reduce heat and simmer uncovered for about 20 minutes just until the sweet potatoes are tender and the flavors have melded.

Step 4 – Creamy peanut butter swirl

Now the fun part. Stir in ⅓ cup of creamy peanut butter until it melts into the broth. It might seem unusual, but trust me this is what gives your kale lentil sweet potato soup its rich, velvety texture and unforgettable depth.

Step 5 – Finish with kale & adjust

Toss in the 2 cups of chopped kale and stir until just wilted, about 2–3 minutes. Taste and adjust the salt, pepper, or chili flakes to your liking.

Ladle into bowls, maybe add a squeeze of lemon or a pinch of sumac if you have it, and serve it hot. This soup keeps beautifully, so don’t be afraid to make extra for lunch tomorrow.

From sauté to simmer — these four easy steps walk you through making this healthy, hearty lentil sweet potato and kale soup.

Kitchen Tools You’ll Need

You don’t need any fancy gadgets to make this kale lentil sweet potato soup just a few trusty kitchen basics:

1. Large soup pot or Dutch oven
This is your MVP. A heavy-bottomed pot helps evenly sauté the veggies and gives you plenty of room to simmer everything without spills. I love my enameled Dutch oven it keeps heat steady and looks pretty on the stove.

2. Sharp chef’s knife + cutting board
With all those beautiful sweet potatoes, carrots, and kale to prep, a good knife makes the job faster (and safer). If you’re short on time, pre-chopped veggies from Trader Joe’s or Whole Foods are total lifesavers.

3. Wooden spoon or heat-safe spatula
You’ll want something sturdy for stirring in the peanut butter and scraping up all those flavorful bits from the bottom of the pot.

That’s it! One pot, one knife, one spoon and you’re on your way to the kind of weeknight dinner that feels like a hug.

Busy Mom Tips for Making Kale Lentil Sweet Potato Soup Easier

1. Use pre-chopped veggies to save time.
Making this kale lentil sweet potato soup after a long day? Grab a container of pre-diced sweet potatoes, onions, or chopped kale from your local grocery store. You’ll have everything in the pot in under 10 minutes.

2. Meal prep it once, eat it twice.
This hearty lentil sweet potato and kale soup gets even better the next day. Make a big batch and store leftovers in airtight containers for lunches or quick dinners all week.

3. Freeze it for future sanity.
Double the recipe and freeze half in individual portions. This sweet potato kale lentil soup freezes like a dream and reheats beautifully.

4. Let peanut butter do the heavy lifting.
No time to simmer for hours? That swirl of peanut butter adds instant richness and depth, transforming your vegan kale lentil sweet potato soup into something that tastes slow-cooked without the wait.

5. Make it a family dinner win.
Worried about the kale? Let the kids stir it in at the end! They’ll be more excited to eat the soup they helped make especially when served with warm bread or rice on the side.

Variations and Substitutions for Kale Lentil Sweet Potato Soup

One of the reasons I keep coming back to this kale lentil sweet potato soup is how flexible it is. Whether you’re working with pantry leftovers or feeding picky eaters, there’s always a way to make it work.

Swap the lentils.
Don’t have canned lentils on hand? You can use cooked green or red lentils just keep in mind red lentils will break down more and create a creamier texture. Both work beautifully in this lentil sweet potato and kale soup.

Use almond butter instead of peanut butter.
If there’s a peanut allergy in the house, almond butter or even sunflower seed butter will give you the same creamy, nutty feel without compromising flavor.

Switch up the greens.
No kale? No problem. Spinach, chard, or even collard greens can be used in this sweet potato kale lentil soup just adjust the cooking time depending on the green.

Make it spicier or milder.
Want more kick? Add an extra pinch of chili flakes or a dash of hot sauce. Cooking for kids? Skip the flakes entirely and serve with crusty bread to keep it cozy and mild.

Add grains for extra heartiness.
Stir in some cooked quinoa, rice, or even orzo at the end to bulk up your vegan kale lentil sweet potato soup into a full-on stew.

FAQ – Kale Lentil Sweet Potato Soup

Q1: Do kale and sweet potato go together?
Absolutely! The natural sweetness of sweet potatoes complements the earthy, slightly bitter flavor of kale. This combination is not only delicious but also packed with nutrients, making it a popular choice in dishes like kale lentil sweet potato soup.

Q2: Can you put kale in lentil soup?
Yes, kale is a fantastic addition to lentil soup. It adds texture, color, and a nutritional boost. In kale lentil sweet potato soup, kale is typically stirred in towards the end of cooking to retain its vibrant green color and tender-crisp texture.

Q3: Are lentils good with sweet potatoes?
Definitely. Lentils provide a hearty, protein-rich base, while sweet potatoes add a creamy sweetness. Together, they create a balanced and satisfying flavor profile in soups and stews, such as kale lentil sweet potato soup. We break it all down in this guide to how healthy lentil soup really is.

Q4: Do lentils need to be soaked before making soup?
No, lentils do not require soaking before cooking. They cook relatively quickly and can be added directly to soups. However, rinsing them before use is recommended to remove any debris. For convenience, canned lentils can also be used in recipes like kale lentil sweet potato soup

If you’re like me juggling work, school runs, laundry, and trying to get something healthy on the table before the next meltdown this kale lentil sweet potato soup might just become your new weeknight lifesaver. It’s quick, hearty, and full of the kind of ingredients that make you feel good about what you’re feeding your family.

What I love most is that this lentil sweet potato kale soup checks all the boxes: it’s plant-based, naturally gluten-free, budget-friendly, and seriously satisfying. My girls love it, my husband goes back for seconds, and I can freeze the leftovers for those crazy nights when cooking just isn’t in the cards.

If you’ve been searching for a simple, nourishing family dinner that doesn’t require a ton of prep or cleanup, this soup delivers every single time. Give it a try and let me know in the comments how it went did your kids love it? Did you add your own twist? I’d love to hear how you make it work for your home.

And if you’re looking for more easy, healthy recipes like this one, be sure to check out our other cozy favorites right here on savorathome. Because feeding your family well shouldn’t feel like a full-time job.

You’ve got this, mama.

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Honney – Founder of SavorAtHome

I’m a biologist and a breastfeeding mom of three girls.
After diving into nutrition science during my first pregnancy, I began creating high-protein, lactation-friendly recipes that make healthy eating simple and comforting for busy moms.
Through SavorAtHome, I share evidence-based, heart-led recipes designed to support energy, milk supply, and joy in motherhood.
Healthy doesn’t have to be complicated, just science-inspired, heart-led, and mama-made.