Sweet Potato Lentil Shepherd's Pie in a Dutch oven

March can be the cruelest of months. It can be so warm and sunny and gloriously beautiful that you want to pack away all your sweaters and boots and scarves and hats and just run your toes through the newly green grass while sipping mojitos.

And then the next day, it’s so bone-chillingly cold and rainy (or even snowy) that you can’t imagine ever being warm again. Oh Mother Nature, why are you such a tease?

After weeks of warmth and sunshine, right now, the weather in my area is doing a bit of a regression back to December (hellloooo, gray and rainy and cold Southern Indiana winters), and that means I’m back in the kitchen focusing on comfort food.

This Sweet Potato Lentil Shepherd’s Pie is healthy comfort food epitomized. It’s 100% whole food, plant-based—seriously, it’s nothing but plants—but it’s so hearty, so filling, so soul-warmingly awesome that you’ll never miss the butter or cream or meat. This is the dish I serve to people who are healthy eating skeptics. Because it’s somehow both totally satisfying and totally health food.

A bowl of shepherd's pie sits on a white napkin on a blue background.

The key to getting this not-so-classic twist on a classic casserole to taste so rich is my current favorite ingredient—raw cashews. I’ve been ordering raw organic cashews by the case lately because I use them in everything. I have a whole post coming up next week about it, but this Lentil Shepherd’s Pie is a good little preview to wet your whistle.

Raw cashews are fatty, oily, and just a tiny bit nutty, but mostly mildly-flavored. And when soaked in water (either overnight or a quick soak with boiling water), they can be blended into the dreamiest, creamiest of plant-based sauces. It’s like a gosh darn Mother Nature miracle. Here, I mix cashew cream with mashed sweet potatoes to make a seriously rich and fluffy topping for this lentil-based casserole.

The ingredients for shepherds pie sit in a white dutch oven on a blue background.

I can’t claim credit for the original idea to do a Lentil Shepherd’s Pie. I first saw Ashley from The Edible Perspective do it ages ago, and her recipe is wonderful (really wonderful) – I’ve been making it and tweaking it into my own version ever since.

I know some folks out there aren’t the biggest fans of lentils (hi, Dad!), but I think you’ll come to the lentil side of life if you try them in this dish. The lentils are packed with so much flavor and they have just the right texture to feel meaty and hearty in the filling.

And hey, mushroom haters, I know you see mushrooms in the filling down in the recipe and are immediately dismissing them, but trust me on this one—you want those mushrooms in there to give the filling a savory, earthy flavor that can be sometimes hard to replicate using only plants. I have you dice the mushrooms really finely, so if your issue with mushrooms is textural, you won’t even notice they are there.

A bowl sits on a white cloth filled with Lentil Shepherd's Pie and a spoon.

Lentil Shepherd’s Pie is one of those dishes that you don’t really need a side dish to go along with —talk about the original one pot wonder. But if you do want to serve up some sides, my favorite way to serve this dish is with a nice garden salad and the biggest basket of warm Irish soda bread around. And probably a dark beer. Maybe winter still being around isn’t so bad. Enjoy!

 
Sweet Potato Lentil Shepherd's Pie

Sweet Potato Lentil Shepherd’s Pie

Yield: 6
Prep Time: 1 hour
Cook Time: 40 minutes
Total Time: 1 hour 40 minutes

Sweet Potato Lentil Shepherd’s Pie is healthy comfort food epitomized, and the ultimate one pot wonder.

Ingredients

For the Potato Topping:

  • 3 pounds sweet potatoes, cooked (baked or boiled)
  • 1/2 cup cashews
  • 1/3 cup water
  • Salt and pepper, to taste

For the Filling:

  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 2 celery stalks, diced
  • 4 large carrots, diced
  • 1/2 pound red potatoes, diced
  • 1 cup brown lentils
  • 4 cups vegetable broth
  • 1 teaspoon dried thyme
  • 1 teaspoon dried sage
  • 1 teaspoon dried rosemary
  • 4 ounces mushrooms, finely diced
  • 1 cup frozen peas
  • 1 cup frozen corn
  • 1 teaspoon arrowroot starch or cornstarch
  • 2 tablespoons water
  • 1/3 cup sliced almonds
  • 1 tablespoon vegan Worcestershire sauce
  • Salt and pepper, to taste

Instructions

  1. Soak cashews in water overnight, or bring the water to a boil and soak the cashews for one hour.
  2. Drain the cashews and blend with 1/3 cup water until smooth.
  3. Mash the cashew cream with the sweet potatoes until smooth. Season to taste with salt and pepper.
  4. Preheat the oven to 350F.
  5. Combine the onions, garlic, celery, carrots, potatoes, lentils, broth, mushrooms and herbs in a Dutch oven. Cover and bring to a boil, then reduce to a simmer. Cook for 10-15 minutes, or until the vegetables and lentils are tender.
  6. Whisk the arrowroot or cornstarch with the 2 tablespoons of water to create a slurry.
  7. Add the peas, corn, starch slurry, Worcestershire sauce, salt, and pepper.
  8. Top the filling with sweet potato topping and sprinkle with almonds. Bake at 350F for 20-25 minutes.

Notes

If you don't have a Dutch oven, prep the filling in a large stockpot, and then pour it into a 9" x 13" casserole pan. Top with the sweet potato topping and almonds, and bake as directed.

Nutrition Information:
Yield: 6 Serving Size: 1 serving
Amount Per Serving: Calories: 545Total Fat: 9gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 0mgSodium: 785mgCarbohydrates: 104gFiber: 16gSugar: 23gProtein: 15g

At Wholefully, we believe that good nutrition is about much more than just the numbers on the nutrition facts panel. Please use the above information as only a small part of what helps you decide what foods are nourishing for you.

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19 Comments

  1. Want to share this joyful (I think) story… on the way to the market this evening I thought to myself “man I’ve been craving shepherds pie.” In an effort to balance our meat intake I wondered if I could make a meatless version. The immediate next thought was, “Cassie surely has tackled this and I’m quite certain done an amazing job.” I quickly grabbed the basic ingredients at the store, came home, searched wholefully and viola here it is. You never let me down wholefully team! Thank you! And in these times, a little thing like this is a huge win for the week. Love and hugs. P.S. I recognize this recipe was posted three years ago but would you share where/how you buy boxes of cashews? Need that in my life! 😉

  2. I am way late on this comment but I feel compelled to write because I think many of the comments do not do this recipe justice. I followed it almost exactly (couldn’t get raw cashews so boiled/soaked roasted cashews, upped the cornstarch to 1 tbsp, and sauteed the onions/garlic/mushrooms first). While I too had too much liquid, I simply used a slotted spoon to transfer the veggies to a casserole dish and topped it with the sweet potato mixture per the recipe. All that liquid left in the pot? Turns out it makes a GREAT soup broth–I paired it with noodles. And the whole dish is even better the second day once all the ingredients get a chance to dance together for a while. Yum.

  3. So I tried this and the flavors were quite good. However I hesitated at only adding one tsp of starch as it seemed like it wouldn’t be enough. The entire dish turned out extremely, extremely watery. I would either cut the broth down or use a whole tablespoon of starch. I even sautéed the onion and mushrooms before adding everything to help with the liquid and boiled with the lid off.

    I did make minor changes though. I used fresh corn off the cob and my peas were freezer burnt. My boyfriend is a meat eater but he’s okay if I only cook meat every so often. So this time around I added a about half a cup of shredded chicken and used chicken broth instead. Changes aside, the ratios, seasonings, and core veggies were all the same and there was definitely not enough starch. 🙁 was this a typing error? Thank you for your wonderful recipe though! It could be suitable for veg heads and meat eaters alike.

  4. My filling was very watery at the time I put it in the oven and when it was done in the oven. Otherwise great recipe but I’m not sure where I went wrong!