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!

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).

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?

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.

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

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

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.

Recipe

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