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Home » Recipes » Main Course Recipes

Roasted Pepper Vegan Quiche with Sweet Potato Crust 

By: kseniaprints · Updated: May 29, 2025 · This post may contain affiliate links.

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The secret to this vegan quiche is the perfect vegan sweet potato crust, and the cheesy, earthy tofu filling with juicy cherry tomatoes and roasted peppers.

Roasted pepper and tomato vegan quiche with sweet potato crust

To those who are leery of vegan quiche - have no fear. If the stretch between this colourful vegan quiche and your traditional idea of the egg, cheese and cream-laden French concoction you've come to think of as quiche is just too great, throw aside the labels.

My Story of Feasting Like a King on Quiche!

Roasted pepper and tomato vegan quiche with sweet potato crust

The moment that the door closed sent a ripple of joy through my body. Feelings of relief, excitement and freedom all began to course through my mind, telling my feet to move faster, my hands to fidget harder. This was finally it: the long-awaited moment that my parents went on vacation and left me home alone. And like every self-respecting teenager, I immediately proceeded to go and do one thing: make quiche (though it was not vegan quiche at the time).

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That day, I prepared an entire feast, where the start of the show was this quiche. Eggplant and tomato stacks and baked brie dip. Accompanied by light white bean salads and cranberry cheesecake, this was the Shavuot feast that I have been dreaming of that whole year. I invited all my friends, my boyfriend stayed over, and though of course wine was had, the overall sense of debauchery was certainly not what you would expect from a teeanger left to their own devices for a weekend.

But how could you act rotten when there's quiche on the table?

Roasted pepper and tomato vegan quiche with sweet potato crust

How to Make the Perfect Quiche Crust 

I have made more pie and quiche crusts than I could possibly count - so I know how to pull the perfect golden and flaky crust out of the oven. It needs to be sturdy yet tender and crisp at the edges. 

This is where the vegan sweet potato crust comes in. It combines the sweetness of grated sweet potatoes with the richness of vegan butter (or a fruity olive oil), forming a golden shell that’s naturally gluten-free and 100% plant-based. 

Here are a few tips for crust success:

Grate, squeeze, repeat: You want to remove as much liquid as possible from the grated sweet potatoes. Wrap them in a clean kitchen towel or cheesecloth and give them a good squeeze. This helps the crust crisp up rather than steam.
Press it in firmly: Use your fingers or the bottom of a measuring cup to press the mixture into a well-oiled pie dish. Start from the middle and work your way out and up the sides, aiming for even thickness throughout.
Bake it solo first: Pre-baking your crust (known as blind baking) allows it to set and begin to crisp before the filling goes in. Don’t skip this step, or you might end up with a soggy bottom.

For more inspiration on vegan and gluten-free quiche crusts that don’t fall apart, check out my gluten-free brie and pear quiche with an almond flour crust and this vegan gluten-free pie crust for expert insights on blind baking. 

Roasted pepper and tomato vegan quiche with sweet potato crust

Directions to Make Vegan Quiche Recipe

Make the Vegan Sweet Potato Crust

Preheat your oven and prepare the crust by mixing grated, squeezed-dry sweet potatoes with a bit of oil, salt, and pepper. Press the mixture into a greased pie dish, forming an even layer along the bottom and up the sides.

Bake until the crust begins to brown and firm up. Set aside when done, but keep the oven on.

Prepare the Roasted Pepper and Tofu Filling

Roasted pepper and tomato vegan quiche with sweet potato crust

While the crust bakes, place whole cherry tomatoes and bell peppers on a baking sheet. Drizzle with oil, season with salt and pepper, and roast until the tomatoes are burst and the peppers are blackened. Once roasted, steam the peppers in a covered bowl or bag to loosen their skins, then peel and slice into strips.

In a food processor, blend tofu with nutritional yeast, hummus, garlic, spices, and seasoning until smooth. In a mixing bowl, combine the roasted tomatoes and peppers with the tofu mixture, tossing gently to coat everything evenly.

Assemble, Bake and Enjoy

Roasted pepper and tomato vegan quiche with sweet potato crust

Spoon the filling into the pre-baked crust and spread it out smoothly. Return the dish to the oven and bake until the top is golden and set. If needed, cover the crust edges with foil to prevent over-browning.

Let the quiche cool slightly before slicing. Serve warm or at room temperature for the best texture and flavor.

Storage and Reheating Instructions 

Once cooled, cover the quiche tightly or transfer slices to an airtight container. Keep in the fridge for up to 4 days.

Warm in a 350°F (175°C) oven until heated through—about 10 minutes for slices, slightly longer for a full quiche. Cover the crust edges with foil if needed to prevent over-browning.

Roasted pepper and tomato vegan quiche with sweet potato crust

Recipe

Tried and loved this recipe? Please leave a 5-star review below! Your reviews mean a lot to me, so if you've got any questions, please let me know in a comment.

Roasted pepper and tomato vegan quiche with sweet potato crust

Roasted Pepper Vegan Quiche with Sweet Potato Crust 

Ksenia Prints
The secret to this vegan quiche is the perfect vegan sweet potato crust, and the cheesy, earthy tofu filling with juicy cherry tomatoes and roasted peppers.
4.91 from 10 votes
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Prep Time 30 minutes mins
Cook Time 1 hour hr
Total Time 1 hour hr 30 minutes mins
Course Main
Cuisine Israeli
Servings 8

Ingredients
  

CRUST

  • 2 medium sweet potatoes 3 cups grated
  • 2 TB melted vegan butter or sub olive oil with varied results
  • ¼ teaspoon sea salt and pepper

FILLING

  • 1 pint cherry tomatoes
  • 2 bell peppers - red yellow and orange all work here
  • 2 TB olive oil
  • 1 block firm tofu
  • 2 TB nutritional yeast
  • 3 TB hummus
  • 3 large garlic cloves minced
  • 1 teaspoon cumin
  • ¾-1 teaspoon fine grain sea salt
  • Black pepper to taste
  • Red pepper flakes optional

Instructions
 

  • Grate sweet potatoes and squeeze until dry. In a large bowl, mix sweet potatoes with 2 TBs oil, salt and pepper. Oil a pie dish, and arrange sweet potatoes in the shape of a pie crust.
  • Arrange whole peppers and cherry potatoes on a baking sheet. Drizzle with oil and roast on high heat (450F) until the skin on the sweet potatoes begins to scorch in places, approximately 25 mins.
  • While crust is baking, coat a baking sheet with aluminum foil. Arrange tomatoes and whole bell peppers, drizzle with 2 tablespoon olive oil and a healthy pinch each salt and pepper and toss to coat. Place in the 450 degree oven with the crust. Continue baking after crust is done, turning bell peppers over to ensure all sides darken evenly. The crust is ready when the tomatoes have burst in parts and the bell peppers have blackened fairly evenly - about 30 minutes in total. Place bell peppers into a ziploc bag, seal and allow to sweat for about 10-15 minutes. Peel peppers and cut them into strips. (these two stages can be done in advance).
  • To prepare quiche filling, add drained tofu to a food processor with nutritional yeast, hummus, garlic cloves, cumin, sea salt and pepper and optional red pepper flakes. Process until smooth.
  • Add roasted peppers and tomatoes to a mixing bowl and top with the tofu mixture. Toss to coat. Fill quiche crust with mixture, spreading it into an even layer and smoothing the top.
  • Bake quiche at 375 degrees for a total of 30–40 minutes, until top appears golden brown and firm. If the crust browns too quickly, loosely cover the edges with foil.
  • Let cool briefly before serving. To reheat, place in a 350F-degree oven for 5-10 minutes, taking care not to burn the edges.
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About Ksenia

Welcome to At The Immigrant's Table! I blend my immigrant roots with modern diets, crafting recipes that take you on a global kitchen adventure. As a food blogger and photographer, I'm dedicated to making international cuisine both healthy and accessible. Let's embark on a culinary journey that bridges cultures and introduces a world of flavors right into your home. Read more...

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      Comments

        4.91 from 10 votes (5 ratings without comment)

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      1. Elena says

        May 10, 2016 at 8:50 am

        5 stars
        What a lovely idea! I've never used nutritional yeast in cooking but I'm curious. What difference does it make?

        Reply
        • kseniaprints says

          May 11, 2016 at 6:41 am

          It adds a nice cheesy flavour to dishes - I *love* it!

      2. Berta says

        May 11, 2016 at 1:06 am

        This is the best vegan quiche I've seen!!

        Reply
        • kseniaprints says

          May 11, 2016 at 6:42 am

          Thanks so much Berta - let me know if you give it a try!

      3. janet @ the taste space says

        May 26, 2016 at 2:34 pm

        Wow, what a gorgeous quiche. I am in awe that as a teenager you had a flair for homemade quiches. It is funny what you do when you know no one is going to be around.

        Reply
        • kseniaprints says

          May 26, 2016 at 3:01 pm

          Haha, I know, it surprised everyone 😛 I guess I was starting to be interested in culinary arts at the time, and this was my chance with the kitchen empty!

      4. Lucy says

        May 27, 2016 at 10:59 am

        5 stars
        So funny that your parents left you home alone and you made quiche! I totally would have done something like that, too. I love the sweet potato crust in this recipe--it sounds so comforting and healthy!

        Reply
        • kseniaprints says

          May 27, 2016 at 1:41 pm

          I think we should have been partying together as teenagers 😉 The sweet potato crust is the best - it makes the dish into more than just a crustless bake, but something more special and unique.

      5. Tara says

        May 27, 2016 at 11:12 am

        Such beautiful photos! I just love the bursting cherry tomatoes on top. I've never tried a vegan quiche before. Yours looks amazing!

        Reply
        • kseniaprints says

          May 27, 2016 at 1:42 pm

          If you've never tried it, this is the one to start with! I thought the burnt tomatoes would add an extra touch 😉
          Let me know if you give this a try!

      6. Tracy | Baking Mischief says

        May 27, 2016 at 11:36 am

        When I saw vegan quiche, I HAD to look and see what this was about. It looks really delicious. I love the idea of a sweet potato crust and the filling looks like it would be so flavorful. Pinning! Oh, and I laughed so hard at your story of your teenage brunch party. You were hardcore. 😉

        Reply
        • kseniaprints says

          May 27, 2016 at 1:43 pm

          Haha, hardcore is definitely how I wanted to think of myself back then 😉 You really get my teenage heart! And the crust really gives the quiche an extra touch - it's not to be missed!

      7. Alexandra says

        May 27, 2016 at 11:44 am

        Haha! I love your teenage story. I used to do the same thing! Pretty sure my friends and I were the only kids in high school who threw dinner parties.

        This is one gorgeous, summery quiche 🙂

        Reply
        • kseniaprints says

          May 27, 2016 at 1:45 pm

          Sasha, you and I should have been throwing dinner parties together, I think 😉 And I agree - I may have jumped the gun with the summery veggies in this quiche, but I really think they help make this into a special dish!

      8. jacquee | i sugar coat it! says

        May 27, 2016 at 11:51 am

        5 stars
        This quiche and your photos are absolutely spectacular! Hmmm...through a party or bake quiche??? LOL

        Reply
        • kseniaprints says

          May 27, 2016 at 1:46 pm

          If it's up to me, the answer will always be: throw a quiche baking party!

      9. pooja@poojascookery.com says

        May 27, 2016 at 12:17 pm

        5 stars
        OMG! Looks amazing..

        Reply
        • kseniaprints says

          May 27, 2016 at 1:46 pm

          Thanks so much Pooja!!! Let me know if you give it a try 🙂

      10. Dannii @ Hungry Healthy Happy says

        May 27, 2016 at 12:43 pm

        5 stars
        This looks beautiful! I keep meaning to try a quiche with tofu and now you have convinced me!

        Reply
        • kseniaprints says

          May 27, 2016 at 1:47 pm

          It honestly tastes completely unlike what you'd expect - full of flavour and really creamy and cheesy. Let me know how you like it!

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