Lentil Stew over Creamy Mashed Potatoes
How I Found My Favorite Cozy Dinner There was a rainy evening years ago when I first threw together what I now always call Lentil Stew over Creamy Mashed Potatoes. I had a sack of potatoes and a forgotten bag of lentils, and I wanted something warm and unfussy. The smell of onions and carrots…
How I Found My Favorite Cozy Dinner
There was a rainy evening years ago when I first threw together what I now always call Lentil Stew over Creamy Mashed Potatoes. I had a sack of potatoes and a forgotten bag of lentils, and I wanted something warm and unfussy. The smell of onions and carrots softening in the pan, the way cumin and thyme floated up as the pot simmered, and the comfort of fork-scooping a spoonful of stew onto a pillow of mashed potatoes—well, that memory stuck. If you ever need a quick refresher on making silky potatoes, I sometimes pair this with the tips I learned from a creamy mashed potatoes guide I clipped online, but honestly you only need a few pantry staples to make this sing.
The little list I keep in my head
I don’t like handing friends a rigid checklist, but let me tell you what I usually reach for: 1 cup lentils, 4 cups vegetable broth, 1 onion, diced, 2 carrots, chopped, 2 celery stalks, chopped, 3 cloves garlic, minced, 1 teaspoon thyme, 1 teaspoon cumin, Salt and pepper to taste, 2 pounds potatoes, peeled and cubed, 1/2 cup milk or plant-based milk, 4 tablespoons butter or vegan butter. That’s it. Simple, inexpensive, and the quantities make enough to feed a small family with comforting leftovers.
Stirring and simmering until the flavors align
The cooking rhythm is one of the things I love. I start by heating a large pot and sautéing the onions, carrots, and celery until soft. The house fills with that sweet, savory scent and you know you’re off to a good start. Then I add the minced garlic along with the lentils, 1 teaspoon thyme, 1 teaspoon cumin, and a confident pinch of salt and pepper. Pour in 4 cups vegetable broth and bring it to a boil; then reduce the heat and let it simmer for about 30 to 40 minutes, which gives the lentils time to become tender and cozy.
A tip I use here: taste the broth after 20 minutes and adjust seasoning early, because lentils absorb flavors and you don’t want to under-season. Another small trick is to mash a few lentils against the side of the pot with the back of a spoon near the end of cooking to thicken the stew naturally if it feels too thin. And if the stew seems too thick, a splash of extra broth or water will loosen it right up without killing the flavor.
Getting the potatoes rich and fluffy
While the lentils are doing their slow work, I boil 2 pounds potatoes that I have peeled and cubed. When they’re fork-tender I drain them and mash them immediately with 1/2 cup milk or plant-based milk and 4 tablespoons butter or vegan butter until they’re irresistibly creamy. I always warm the milk slightly before adding it so the mash stays hot and integrates smoothly. If you like a little more silk, a potato ricer or passing them through a food mill will do the trick, but vigorous mashing with a good wooden spoon works beautifully for a rustic texture.
For a subtle twist, I sometimes fold in a little grated cheddar or a spoonful of Greek yogurt at the end, but that’s optional. How to know the potatoes are done right: they should be fluffy, not gluey, with a small peak at the top that holds for a moment before settling. The potatoes provide the soft, buttery base; the stew sits on top like a savory blanket.
The small things that change everything
I’m sentimental about certain tiny moves in the kitchen. Adding garlic a little later than the other vegetables keeps it from browning too much and turning bitter. Choosing thyme over rosemary here gives a mellower background that plays nicely with cumin’s earthiness. If you want a smoky lift, I’ll sometimes swap regular cumin for smoked cumin or add a teaspoon of tomato paste when I add the lentils for a deeper color and slightly tangy undertone.
When it comes to finishing, I always check for balance: the stew should be savory with an undercurrent of sweetness from the carrots, and the cumin should be present but not shouting. You’ll know it’s right when the aroma makes you want to eat it straight from the pot and the lentils stay intact but yield when you bite them.
Ways I make it mine and how to serve it
For serving, spoon the lentil stew over a generous bed of the creamy mashed potatoes. It’s the contrast of textures—the soft, buttery mash against the hearty, slightly brothy lentils—that I look forward to. This dish pairs beautifully with a crisp green salad for brightness, or roasted root vegetables if I’m leaning into comfort. If you have leftover turkey or want a richer meal, try it alongside a quick stew using leftovers; I once adapted parts of a leftover turkey stew idea to make a meaty version for guests and it was a hit.
A couple of variations I recommend: add sautéed mushrooms when you add the lentils for a deeper, umami-rich stew, or swap half the potatoes for sweet potatoes to change the flavor and color—this is a great way to bridge to a sweeter side like in my favorite apple-cider pork dinner. If you like a little heat, a pinch of red pepper flakes or a dash of hot sauce at the end elevates the whole bowl.
When I make it ahead and how to store leftovers
I often double the recipe because the leftovers are almost better than the first night. Let the stew cool to room temperature, then store it in an airtight container in the fridge; it’ll keep well for 3 to 4 days. The mash stores separately and can be revived with a splash of milk while heating, stirring gently to regain that creamy texture. For longer storage, both components freeze well—freeze the stew in a shallow container for quicker thawing, and the mashed potatoes can be frozen in a freezer bag with the air pressed out. When reheating frozen mash, add milk gradually and stir over gentle heat until smooth.
A final practical tip: if you want to meal-prep servings, layer the potatoes first, then the stew on top in microwave-safe containers; it makes warming a single bowl at lunch easy and fast.
Conclusion
If you’re curious about another take on lentils served over potatoes that emphasizes mushrooms and a slightly different seasoning profile, I like to look at Lentil Mushroom Stew Over Mashed Potatoes – Minimalist Baker for inspiration.

Lentil Stew Over Creamy Mashed Potatoes
Ingredients
Method
- Heat a large pot over medium heat and sauté the diced onion, chopped carrots, and celery until soft, about 5-7 minutes.
- Add minced garlic, lentils, thyme, cumin, and season with salt and pepper. Stir to combine.
- Pour in the vegetable broth and bring to a boil. Reduce the heat and let simmer for 30-40 minutes until lentils are tender.
- Adjust seasoning as needed after 20 minutes. If the stew is too thick, add more broth or water.
- Boil the cubed potatoes in salted water until fork-tender, about 15-20 minutes.
- Drain and mash the potatoes while hot, adding in warmed milk and butter until creamy.
- For extra silkiness, use a potato ricer or food mill if desired.
- Spoon the lentil stew over a generous bed of creamy mashed potatoes and enjoy.
