Easy Shepherd’s Pie with Turkey and Mashed Cauliflower

Last updated on July 30th, 2025

This easy Shepherd’s Pie with Turkey is light, meaty and layered with healthy mashed cauliflower. Cook ground turkey with a mirepoix of onions, carrots, and celery. It’s filling and a low-carb version of a classic British-Irish comfort food.

Shepherd’s Pie with Turkey and Mashed Cauliflower

Get ready to indulge in a heartwarming dish that brings cozy vibes straight to your table! This isn’t your average shepherd’s pie; in fact, we’re shaking things up!

Traditionally made with lamb (or beef in the cottage pie version), I’ve, however, swapped in ground turkey for a delightful twist. Trust me, this lean protein packs a punch of flavour that makes this casserole just as delicious as the classic! Dive in and let the warm fuzzies fill your soul with every savoury bite!

Ditch the potatoes

This recipe is a real winner! First, it all starts with simmering ground turkey alongside some delicious sautéed veggies, creating a wonderful mirepoix (more on this below). After that, let it cook together in a savoury gravy seasoned with Worcestershire sauce for that extra saucy zing.

Finally, ditch the potatoes! Layer that flavourful turkey filling with creamy mashed cauliflower, and you’ve got a fantastic alternative to traditional pie topped with mashed potatoes. Trust me, no one will even notice the difference!

Ultimately, this combination ensures a flavourful and satisfying dish for the whole family.

A cozy, low-carb shepherd’s pie

Moreover, the closest thing to snuggling up with a hot water bottle on a cold Fall or wintry evening is the feeling you get when you dig into this low-carb shepherd’s pie.

The saucy mirepoix of onions, carrots, and celery doesn’t stray far from the original shepherd’s pie flavour, and it’s the ultimate comfort food to devour on a cold evening. Hence, I like to call it edible coziness, the low-carb way!

Low-starch option

Shepherd’s pie with turkey and mashed cauliflower is not only a delicious twist on the traditional recipe but also serves as a fantastic low-starch alternative.

Specifically, cauliflower, which contains less starch than potatoes, makes it an ideal substitute for lightening up this iconic Irish dish.

Although perfect for fall, you can enjoy this recipe now! In fact, by St. Patrick’s Day, you’ll be a pro at preparing this healthy version! So, dive into this tasty low-starch option and savour all the flavours you’ll want to have on repeat.

Why you’ll love Shepherd’s Pie with Turkey and Cauliflower

• It’s a light, low-carb version of the classic shepherd’s pie, most popular in British and Irish cuisine.
• This recipe is your meat and potatoes dinner rolled into one casserole dish.
• The gravy is delicious, and the cauliflower mash soaks up the meaty flavour.
• This dish tastes like the real thing, except it’s low in starch and much lighter in calories, too.
• Create this affordable and delicious pie using simple ingredients in under an hour.
• This shepherd’s pie recipe can be made ahead of time, making it perfect for meal prep.

Carbs and Servings in Shepherd’s Pie with Turkey and Mashed Cauliflower

This shepherd’s pie has just under 15g net carbs per serving, significantly lower than traditional versions made with mashed potatoes. While potatoes are nutritious, their high carb content can affect blood sugar levels, making this low-carb option ideal for those monitoring their sugar and starch intake.

under 15g net carbs per serving

• 16g of carbs
• 3.8g of fibre
• 12.2g of net carbs

To capture that classic shepherd’s pie flavour, I love adding carrots and peas to this recipe, which does increase the carb count slightly. However, if you prefer, you can substitute them with low-carb vegetables, such as zucchini, eggplant, or green beans.

Tips for Making a Delicious Low-Carb Shepherd’s Pie

• Boil, steam, or use an Instant Pot to cook the cauliflower; whichever method you choose, ensure it is fork-tender and avoid overcooking it.
• This pie uses ground meat, which can clump up, so break the meat evenly with a spatula to mix it with the sautéed vegetables.
• Arrowroot starch thickens the gravy in this pie, but first, you must make it into a slurry with liquid. Then mix it into the meat filling towards the end before transferring it to the baking dish.
• The pie filling will be hot, and excessive heat could cause the arrowroot starch to break down, resulting in a watery sauce. To prevent this, I recommend baking the pie for a maximum of 10 minutes to heat the cauliflower mash without overcooking the gravy.

Understanding Mirepoix in this Shepherd’s Pie Recipe

Mirepoix, pronounced ‘meerpwah,’ refers to a French term for sautéing a trio of vegetables in oil or butter to create the main building block of aromatics in a sauce or gravy recipe. In this case, I am using onion, carrots and celery, which are classic mirepoix components. Moreover, it’s the perfect way to use mirepoix in this shepherd’s pie recipe, which makes it so flavourful and delicious!

Essentially, making mirepoix is the first step in creating a soup or stew, which lays the groundwork for an aromatic base full of flavour. This results in a delicious taste that continues through the whole dish, right to the end.

In fact, it’s a fundamental cooking term I remember learning about in cooking classes years ago (since school age). Furthermore, I’m sure it’s still taught in every chef’s school, even today. Do you know about it? Let me know in the comments below.

Other mirepoix variations around the world

You’d be surprised at how many cuisines have adapted their own mirepoix trio of ingredients into signature dishes.

In my Jambalaya recipe, I use the Holy Trinity of onions, celery and bell peppers, the main ‘mirepoix’ flavour base in Creole or Cajun cuisine. Some other mirepoix trinities around the world are:

• German Suppengrün trinity: Carrots, celeriac (also known as celery root), and leeks are the main flavourings for German soups.
• Spanish Sofrito trinity: Onion, tomato, and garlic cooked in olive oil for paella stews and bean dishes.
• Szechuan trinity: Garlic, ginger and chilli peppers to stir-fry greens and meats.
• Thai trinity: Galangal, kaffir lime, and lemon grass are distinct flavours in Thai soups and curries.
• Italian Soffritto trinity: Tomato, garlic and basil add rich flavour to pasta dishes and risottos.
• French Mirepoix trinity: Onion, celery, and carrot is the most popular trio used for making French soups and meat fillings in pies.
• Indian trinity: Onion, garlic, and ginger (sometimes chillies and tomatoes) are used to make curries.
• Chinese trinity: Scallions, ginger, and garlic (sometimes accompanied by carrots) for noodles, stir-fries, and rice dishes.

Do any of these variations spark your interest, or do you have another one in mind?

Ingredient Notes for Low-Carb Shepherd’s Pie

• Ground Turkey – lean, ground or minced is ideal, but you can use leftover roast turkey or chicken.
• Mirepoix – the traditional trio of onions, carrots and celery sautéed in oil brings out a natural, desirable taste reminiscent of classic shepherd’s pie flavour.
• Frozen Peas – optional, as they are a little high in carbs, but I like to add them for colour and give the meat sauce a bit of sweetness.
• Chicken broth – makes the meat filling saucy and adds extra flavour. Substitute with vegetable broth for a vegetarian shepherd’s pie.
• Olive oil – or any healthy oil to sautee the vegetables with, to help create the main base for added flavour.
• Tomato paste – adds colour and helps to thicken the meat sauce.
• Garlic, crushed or minced, enhances the meaty flavour of the sauce when cooked with the mirepoix.
• Herbs – dried oregano and thyme add an earthy flavour to the pie.
• Arrowroot starch – used instead of cornstarch to thicken the sauce. The trick to arrowroot starch is to make a slurry with some of the sauce, then stir it into the meat sauce at the very end to thicken it.
• Worcestershire sauce – provides deep flavour to the mirepoix and makes the gravy saucy. Use balsamic vinegar or soy sauce instead for a vegetarian pie.
• Salt & pepper – added for taste, but you can add as much or less as you prefer.
• Mashed Cauliflower – a low-starch alternative to mashed potatoes, making this dish a lighter version. Any leftover cauliflower mash will work too. Not watching carbs? Feel free to go ahead and use potato mash instead.

How to make Shepherd’s Pie with Turkey and Mashed Cauliflower

1) Prepare the mashed cauliflower:

Prepare the cauliflower mash as directed here, or according to your preferred method. Dice the veggies for the mirepoix into equal sizes and keep them aside. Keep the frozen peas out in a strainer inside a bowl to defrost while you make the shepherd’s pie filling.

2) Make the mirepoix:

Heat a sauté pan over medium heat, add olive oil, garlic, and the trio of veggies, and sauté for about 5 minutes, until translucent. Add salt, pepper, and herbs to taste.

3) Cook the turkey:

Add ground turkey to the vegetables and use a spatula to break the turkey into small pieces. While it cooks, use a flat-edged spatula to cut and loosen the meat. Cook for about 8 minutes or until the meat has browned.

4) Add broth:

Add chicken broth to the pan and bring it to a boil. Simmer for about 5 minutes to allow the flavours to infuse into the meat and vegetables. 

5) Flavour the shepherd’s pie gravy:

Bring up the heat and add two tablespoons of tomato paste and two tablespoons of Worcestershire sauce. Mix all the ingredients together and cook over medium heat.

6) Prepare the arrowroot slurry:

Mix the arrowroot starch with a small amount of liquid in a bowl until well combined.

7) Thicken the sauce:

On medium to high heat, while the gravy bubbles slightly, mix in the arrowroot slurry and stir until the liquid has thickened. This should happen quite quickly. Then turn down the heat to low to prevent the turkey and gravy from burning.

8) Stir in the peas:

Switch off the heat immediately and stir in the drained peas. Add extra spices, salt, and pepper for added taste if desired. The filling is now ready to assemble with mashed cauliflower.

9) Assemble the shepherd’s pie:

Transfer the meat filling into a 9×13-inch baking dish. Then, spoon the mashed cauliflower over the shepherd’s pie filling.

10) Top with the mashed cauliflower.

Now use the back of a spoon or spatula to spread the mashed cauliflower to cover the turkey filling completely. Then use a fork to create a crisscross pattern for appeal or however you like to decorate it.

11) Bake:

Bake the pie in the oven at 400°F for 10 minutes to warm up the mash. Turn on the broiler setting and broil the mashed surface until it has browned on top. Amazingly, the cauliflower mash will puff up just like regular mash, so delicious!

How to serve Shepherd’s Pie with Turkey and Mashed Cauliflower

Shepherd’s pie is like your meat and veg mixed up into a casserole, and I like to eat it just the way it is since it has everything in it: deliciously cooked minced turkey, soft veggies and a flavourful gravy underneath a creamy cauliflower mash to soak it all up. However, there are many other ways to serve this dish with meals for a complete and hearty dinner.

• Serve with a side of extra sautéed vegetables, like mushrooms, courgette (zucchini) or broccoli.
• Roasted or steamed Brussels sprouts make a great side.
• Steamed green beans, lightly sautéed in butter, add a great accompaniment to this shepherd’s pie.
• Try this pie with red cabbage Coleslaw for a slightly lighter meal for lunch.
• Make extra gravy while making the meat mixture, and pour it over the pie when serving.
• Serve this pie with salad greens, like kale and spinach.

Storage Tips

Refrigerate:

Store leftovers in an airtight container or cover the dish with cling film in the fridge for 3-4 days.

Freezing:

The dairy ingredients in the cauliflower mash may not hold up well in the freezer, and could make the pie watery.

As a suggestion, you can freeze the meat filling and make the cauliflower mash when you want to make the shepherd’s pie. Thaw the pie filling overnight in the fridge.

Reheating Leftovers

Microwave: Place leftovers on a microwaveable plate or dish, cover it, and heat for 1-2 minutes, or as instructed in your microwave’s instruction manual.

Oven: Bake at 400°F for about 20 minutes.

Enjoy this cozy, comforting dish that’s perfect for any night of the week!

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