Sweet Potato Crust Quiche an easy spinach quiche
By Carine Claudepierre
Published on 10/19/2015 - Last updated on 05/16/2023
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Are you looking for a delicious easy sweet potato recipe? This sweet potato crust quiche is the one to try.
Like a crustless spinach quiche with a thin sweet potato crust, an easy spinach quiche made lighter with no carb-loaded crust! 100% gluten-free, paleo, whole30 approved.
What Is A Sweet Potato Crust Quiche?
A sweet potato crust quiche is a healthier and faster version of your favorite quiche.
It is made with a thin slice of peeled orange sweet potatoes meaning you don’t have to prepare a pastry crust.
A sweet potato crust contains fewer carbs, less fat, and healthy nutrient from sweet potatoes.
Plus, it is an easy spinach quiche recipe made in less than 20 minutes for a quick healthy dinner.
Why You’ll Love This Recipe
We all love a healthy spinach quiche with fresh spinach right?
If you crave a delicious spinach quiche tonight but don’t feel like baking the crust this sweet potato crust quiche is a life-saver.
How To Make Sweet Potato Spinach Quiche
Obviously, this sweet potato crust must be eaten on your plate as it doesn’t have a crust
While it is easy to slice and serve in a place, it does not hold well in your hands. It is more similar to a crustless spinach quiche in which you would have had some sweet potatoes.
It makes a very easy healthy dinner that everyone loves.
Ingredients
All you need to make this simple sweet potato crust quiche or easy spinach quiche crustless are:
- Orange sweet potatoes – peeled, thinly sliced.
- Spinach – fresh or frozen.
- Eggs
- Dairy-free milk or regular milk as you like.
- Cheese – is optional if you are on a paleo diet you can omit the cheese on top.
How Many Carbs Are In Sweet Potato Spinach Quiche?
Did you know that 100 grams of orange sweet potatoes contain only 17 grams of net carbs?
While it may seem a lot for someone on a keto diet, it is a low-carb vegetable for anyone looking to decrease their carbs.
It should be reminded that a regular pastry crust made of white wheat flour contains around 40 grams of net carbs.
So this sweet potato crust quiche is a good start to halving your carbs by 50% in an easy spinach quiche recipe.
Of course, it is recommended to use a round ceramic tart dish to make this quiche recipe. It is easier to slice and serve.
Storing Sweet Potato Spinach Quiche
This sweet potato crust quiche is an easy sweet potato recipe to make ahead and reheats the next day.
You can store your recipe in an airtight container in the fridge for 3 days.
The first option, reheat in the microwave for 2 minutes. Otherwise, bring it back to the oven at 350°F (180 °C) for 8-10 minutes.
Finally, you can freeze your quiche in single portions or whole and defrost in the fridge the day before serving and reheat in the oven.
More Easy Meal Recipes
If you love easy low-carb meal recipes, check out the recipes below:
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Sweet Potato Crust Quiche
Ingredients
- 2 Sweet Potatoes medium size orange, peeled, finely sliced
- 1 tablespoon Extra Virgin Olive Oil
- 2 Garlic Clove finely chopped
- 1 Onion finely chopped
- 14 oz Frozen Spinach
- ¼ teaspoon Ground Pepper optional
- ½ teaspoon Salt
QUICHE EGG BATTER
- 4 Eggs
- ¾ cup Unsweetened Coconut Milk or milk of your choice
- ¼ teaspoon Ground Nutmeg
- ¼ cup Grated Cheese edam, cheddar, feta
Instructions
- Preheat oven to 350°F (180°C).
- Grease a 9-inch (24 cm) round ceramic quiche dish with butter or coconut oil. Set aside.
- In a frying pan, under medium heat warm the olive oil.
- Add garlic and onion. Fry until fragrant and golden brown. Stir often to prevent the spices from burning.
- Add the frozen spinach cover and reduce to low heat. Cook until the spinach is cooked through, soft and tender – about 15 minutes. Adjust with salt and pepper to taste.
- Meanwhile, peel the sweet potatoes then use a mandoline Vegetable Slicer to finely slice the sweet potatoes.
- Arrange the slices on the pan making sure that you cover all the bottom leaving no empty space. For the border, cut in half the sweet potatoes slices to create a 'flat' bottom it will hold better and create a beautiful crust border.
- Prebake the sweet potato crust at 180°C for 15 minutes. This is optional, you can also add the spinach and egg filling directly and bake your quiche – make sure you cover the dish with a piece of foil to ensure the quiche is cooking at the same speed. I prefer to prebake the crust to avoid using a foil – up to you.
- Spread the cooked spinach all over the pre-baked sweet potatoes crust. Set aside.
- In a medium mixing bowl beat the eggs, almond milk, and nutmeg. Adjust with salt and pepper if desired.
- Pour the egg mixture onto the quiche.
- Add a handful of grated cheese on the top of the quiche, if desired. If paleo, sprinkle almond meal on top instead of cheese, it gives a delicious crisp on top.
- Bake for 25-30 minutes or until the sweet potatoes are soft and the cheese is grilled.
- Serve immediately.
Notes
Want My Kitchen Equipment?
Nutrition
About The Author
Hi, I'm Carine, the food blogger, author, recipe developer, published author of a cookbook, and founder of Sweet As Honey.
I have an Accredited Certificate in Nutrition and Wellness obtained in 2014 from Well College Global (formerly Cadence Health). I'm passionate about sharing all my easy and tasty recipes that are both delicious and healthy. My expertise in the field comes from my background in chemistry and years of following a keto low-carb diet. But I'm also well versed in vegetarian and vegan cooking since my husband is vegan.
I now eat a more balanced diet where I alternate between keto and a Mediterranean Diet
Cooking and Baking is my true passion. In fact, I only share a small portion of my recipes on Sweet As Honey. Most of them are eaten by my husband and my two kids before I have time to take any pictures!
All my recipes are at least triple tested to make sure they work and I take pride in keeping them as accurate as possible.
Browse all my recipes with my Recipe Index.
I hope that you too find the recipes you love on Sweet As Honey!
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Disclaimer
The recipes, instructions, and articles on this website should not be taken or used as medical advice. The nutritional data provided on Sweetashoney is to be used as indicative only. The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates.
You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.
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hi from Switzeland-just found this recipe and your blog on Pinterest while looking for some ideas for dinner.. pinned your blog for good. will make a vegan option tonight. thanks for the inspo!
Awesome ! Welcome on the blog. I am so happy to have more people from Europe here. I am French and visit Switzeland last year, what a beautiful place! Enjoy the blog. XOXO Carine.
Hey there, quick question
Do you think this would taste good without cheese? I’m lactose intolerant and I live in Lebanon so there aren’t really any fake cheeses/cheese alternatives.
Thanks!
Of course! My little girl don’t like melted cheese and we replace that by ground almonds or crushed seeds to add a little crunch on top! Delicious ! Enjoy the recipe and the blog. XOXO Carine.
Wow, spotted this shared on Facebook and for once I had all the ingredients in the fridge. Utterly delicious!! Thank-you!
Great !!! Enjoy the quiche and thanks for reading my blog! XOXO Carine.
Made this a couple of nights ago for dinner, it was a total win, everyone loved it, it was also very nice cold the next day. I love the combo of super easy, healthy and tasty.
Thanks for this lovly comment! I am so glad you love the quiche. I have to give it a go cold as well 🙂 Sounds yummy too. XOXO Carine.
Hi, recipe sounds great and am anxious to try it. But I didn’t find the nutritional value posted, could you please post? Thank you.
Don,t be anxious this is a super easy recipe and all the comment has been GREAT! You can do it ! Nutrition panel appears after the recipe cad, scroll down a bit more to see it. Enjoy the quiche. XOXO Carine.
Hi
I made this this week and it’s yummy however my base was really soggy. Not sure if this was because of the potato’s (which I pre baked ) or the water from spinach? Is there anything I can do?
It should not be soggy and it is the first comment I read about that. If you perfectly cook your spinach in the saucepan all the water from the spinach should be out so it won’t come from here. The crust gets dry too after beeing pre baked so same, not a problem. If it was the egg filling that wasn’t set it means that you may have overcooked the quiche, or too low temperature? Next time, make sure you cook very well the spinach that is the only thing that could make the quiche runny – like any other quiche actually. The extra liquid from spinach dissolve the egg batter making it difficult to set. Enjoy the recipe. XOXO Carine.
Thank you for this recipe! I have to cook a French Cuisine vegetable recipe for a dinner get-together with friends next month, and this recipe looks so good! I’m anxious to try it!
My pleasure! Don’t be anxious all the recipes on my blog are SUPER EASY to make. You can do it and your guest will be impressed I am sure 🙂 Enjoy the quiche and all the easy healthy recipes on the blog. XOXO Carine.
Just made this for my lunch and you get 10 out of 10 we loved it. So easy and very tasty.I added carrots and onions to mine as I did not have that much spinach. Going to make it again very soon Thank you.
Thank you SO much !!!! I love your addition of carrots! I must try this soon! Enjoy the recipes on the blog. XOXO Carine.
Is that a 14 C. Each Of Edam, feta and cheddar or 1/4 C of my choice of those?
Cheese is optional but if used add 1/4 cup of any sort of cheese. Feel free to use a combo of cheese, ratio you like or only edam or only cheeddar. Anything taste delicious. Enjoy the recipe, XOXO Carine.
Hello Carine, looks super yummy can’t wait to try! Would this work if I just used egg whites?
I am sure it will! You may have to add 2 more egg white to balance the loose of liquid if you remove egg yolk tho. Enjoy the quiche ! XOXO Carine.
Thank you so much for the recipe and especially for adding metric measures! I added 250g of wild salmon and it was delicious!
great idea on the salmon! we try to incorporate a lot of salmon for our cholesterol issues (hereditary)…did you cook it first??
My pleasure! Enjoy the recipes on the blog. I am vegetarian so I don’t eat fish but I am sure others will love to try your recipe ! thanks for sharing ! XOXO Carine.
Loved the quiche. Always trying to serve healthy meals that are lower in calories and carbs. Thank you for your recipe. The sweet potatoes worked so well. I had selected the recipe and got busy at dinner time. My husband volunteered to make it. He is not a good cook but this was so easy that even he could make this without a problem.
The most beautiful comment on earth! When husband are in the kitchen it is big YEAH 🙂 I am so happy you enjoyed the quiche and he can’t cook for you. Amazing! Thanks for testing my blog recipes. XOXO Carine.
WHAT about using jicama or turnips, instead of sweet potatoes?
Of course! If you are on a low carb or keto diet I would recommend turnips or jicama for sure. I made this recipe with swedes once, it cook slightly longer to cook tho – I recommend to precook the crust longer until soft before adding the spinach filling. Enjoy the recipe. XOXO Carine.
I was also thinking maybe squash?? Our supermarket often sells it cubed and ready to go. I wish they did for sweet potatoes as well! LOL! I’d make the dish even more (I’m always crunched for time!)
Hello! I am not a good cook, but I am on dinner duty! 🙂 I have a glass round dish and wonder if I have to adjust the cooking time or temp because the pan is glass and not ceramic? OR do you not recommend using glass at all?
Hello! Don’t worry it will be fine with ceramic or glass. Both cook food pretty much the same way. My advice, check the filling when it is set it is cooked 🙂 Let me know how it goes! Enjoy the quiche. XOXO Carine.
What could I use in place of the spinach? Not a fav at our house.
Hello! Any usual quiche filling will work well like zucchini slices, broccoli pieces – steam them before and let cool down before adding to avoid adding extra mositure – a combo of mushrooms, spring onion and red capsicum. Enjoy the recipe. XOXO Carine.
Made this tonight – a friend posted it just as I was looking for a meatless dish to make tonight…I loved that I only needed a few ingredients! It was delicious! My only issue was the cooking time – It took about an hour to really cook through. The only thing my husband and I can think of is that I didn’t drain the spinach well enough? Thoughts???
Looking forward to perfecting my technique and serving for a family dinner in April!
P.S. I used lactose free milk and added Valencia orange peel spice to the quiche mix and I use Lemon Olive Oil – it all meshed together beautifully!!
Hello! It should take so long at all ! is that your filling that wasn’t set or the crust that was still soft? If it is the filling it defo comes from too much liquid. I cook my spinach in a fry pan before adding them on the pre-baked sweet potato crust and there is no water left after cooking them. May be cook the spinach longer to evaporate the liquid before spreading on the crust? Love your spices and oil choice!Sounds amazing for extra boost of flavors. Thanks for sharing and testing my recipes ! XOXO Carine.
Yes – I used the lemon olive oil to saute the spinach and so that probably added a ton – that is how I like to make my fresh spinach. Trying again today to bring to a family who is in need of meals at a difficult time. Going to make sure I drain it well!! I’ll drain in a sieve and pat with paper towels as well. I’ll keep you posted!
You are so kind. Yes, keep me posted! Have a lovely time making the recipe agin. XOXO Carine.
Can you use fresh spinach in this recipe! We don’t have whole leaf frozen spinach here. How much would it take. Thanks
Sure you can. I do use fresh spinach most of the time. For this quiche size you need 400 g of fresh spinach – trim the spinach leaves – remove feet and chop finely before cooking in the pan. Enjoy the recipe ! XOXO Carine.
I’m wondering what are the best kinds of cheese to use on this dish. I have shredded mozzarella and a Mexican blend. Do you think either one of those will work fine? I also have grated Parmesan.
Hello! Honnestly any kind of hard cheese works well in this quiche. I love shredded mozzarella because it melt really well and create cheese strings when super hot from the oven. But it is also a very bland cheese. For extra boost of flavor I would recommend grated parmesan, emmental, cheddar or even feta (feta and spinach is AMAZING but it doesn’t makes strings as mozzarella does, so maybe a combo of too :). Let me know what you try and if you love it ! XOXO Carine.
Found this recipe by accident , had the make it straight away and I’m so glad I found it too ? it’s abs delicious and so easy to make!! My husband loved it so I will be making them quite regularly from now on! Thankyou and a BIG ? UP!!?
I LOVE that story ! I am so glad you and your husband love the quiche and thank you to take a minute to add such a beautiful comment. You made my day 🙂 XOXO Carine
Caribe. I don’t know you, but I love you. I came upon this by accident (or maybe not). I bought a ton load of spinach on sale yesterday. Washed them and I’m sitting on my sofa trying to figure out what to do with all this spinach. Here comes my ‘sweetashoney’ angel Carine. You see, I’m always buying sweet potatoes, but all I do is bake them or make a pie. This is perfect for me because I’m trying to stay away from regular pie crusts. What a genius idea. Thanks for sharing. Nothing happens by chance.
You are so lovely ! I am a HUGE spinach lover so search the blog for ‘spinach’ and you should find plenty of easy healthy recipes to use those lovely spinach you bought 🙂 Enjoy the recipes on the blog! XOXO Carine.