Slow Cooker Red Lentil Pumpkin Soup
Updated November 13, 2025

- Ready In
- 4 hr
- Rating
- Comments
- Read comments
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Ingredients
1½ cups red lentils
1 (15-ounce) can pumpkin purée
1 teaspoon ground turmeric
1 teaspoon smoked paprika
1 teaspoon ground coriander
½ teaspoon crushed red pepper (optional)
¼ teaspoon ground cinnamon
4 tablespoons olive oil, divided
Kosher salt (such as Diamond Crystal)
½ cup pepitas (pumpkin seeds)
½ teaspoon cumin seeds
1 red onion, chopped
1 lemon, juiced
Preparation
- Step 1
Add the lentils, pumpkin, turmeric, paprika, coriander, red pepper, cinnamon, 1 tablespoon olive oil and 1 tablespoon salt to a 6- to 8-quart slow cooker; top with 5 cups water and stir to combine. Cook on high for 4 hours or on low for 6 hours, until the lentils are tender. (This soup holds well on warm if you need flexibility.)
- Step 2
Before serving, warm 1 tablespoon olive oil in a small skillet over high heat. Add the pepitas, cumin seeds and, if the pepitas are unsalted, a pinch of salt. Cook, stirring constantly, until the pepitas are toasted and the cumin is sizzling and popping, 2 to 3 minutes.
- Step 3
Scrape the seasoned pepitas onto a paper-towel lined plate. Put the skillet back over high heat and add the remaining 2 tablespoons olive oil, the red onion and a generous pinch of salt. Cook, stirring often, until the onion is browned and softened, about 8 minutes.
- Step 4
Scrape the onion and its oil into the soup along with the lemon juice and stir to combine. Taste and add additional salt if necessary.
- Step 5
Serve the soup in bowls and sprinkle with the toasted pepitas. The soup will thicken as it cools, so adjust the texture with additional water as necessary.
Private Notes
Comments
This soup was terrific and easy to make on a Saturday morning as rain and snow approached. Since I was juicing an entire lemon anyway, I zested it as well and added the zest, a habit I learned from Abra Berens in her Ruffage cookbook, and the extra lemon truly heightened the flavor of the soup, as it always does. I also sauteed the onions on medium-high rather than high, which caramelized them rather than blackened them. Love both lentil soups as well as pumpkin. Greens would be a welcome addition, and I will likely stir in some baby arugula to the rest of the pot. Would definitely make again--always welcome and look forward to this author's slow-cooker and soup recipes, and I love soup all year round but especially in the cooler months.
I appreciate that this is a really budget friendly recipe but unique! Many families will need recipes like this made from pantry items more than ever.
Having harvested 20 butternut squash from my garden, I do it all the time. I roast the squash and then scoop it out discarding the skin.
The lemon juice ruined this for me. I tasted before adding the lemon and thought it was fantastic. Then I added the lemon (it was a very juicy lemon with a lot of juice) and thought the flavors became muddied and too acidic. If I make again, I'll forego the lemon entirely or just a small squeeze. My husband, who hadn't tasted pre-lemon, thought it was good however. Added 5 oz carton of spinach which was the right amount.
Declicious soup!! I made it on the stovetop and added chopped spinach upon serving.
So easy to make and delicious. My slow cooker blew after I plugged it in so I made it on the stove top. Added a bag of fresh spinach at the end.
