Slow Cooker Red Lentil Pumpkin Soup
Updated November 13, 2025

- Ready In
- 4 hr
- Rating
- 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.
If you are in a rush 16 minutes in an instant pot at high pressure works well.
Only had fresh pumpkin so I steamed a couple lbs(?) & blended with a generous splash of the steaming water to approximate canned. Also made on stovetop with a cup less water - no time for slow cooker. 25-30 min cook time. THIS SOUP IS DELICIOUS! Definitely a keeper. Easy to make, healthy and impressive tasting with fairly uncomplicated, relatively inexpensive ingredients. 10/10
@Bob I was just wondering about conversion to Instant Pot. Thank you!
Woof. This was a miss for me. Adjusted it based on comments and it went from bland and gritty to ok. The first 5 star recipe here that won’t be a repeat for me.
