The Ultimate JUST Egg Quiche (Easy & Foolproof Recipe)

If you thought a rich, decadent, and ridiculously easy vegan quiche was the stuff of dreams, it’s time to wake up and head to the kitchen. This JUST Egg Quiche is a true game-changer for plant-based brunch.

We’re talking a savory, custardy filling loaded with your favorite veggies and vegan cheese, all nestled in a buttery, flaky puff pastry crust that takes zero effort. Forget fussy, complicated recipes that rely on tofu; this quiche leverages the magic of JUST Egg to create a texture and taste so authentic, you’ll have a hard time believing it’s egg-free.

It’s the perfect centerpiece for a holiday breakfast, a weekend brunch, or even a simple weeknight dinner. Let’s get baking!

Why This Recipe Will Become Your New Brunch Staple

Many vegan quiche recipes can be a bit of a science experiment, often relying on blended tofu that can sometimes result in a dense or grainy texture. This recipe sidesteps all of that for a few key reasons:

• Unbelievably Authentic Texture: JUST Egg is made from mung bean protein, which has natural properties that allow it to set and bake into a light, savory custard—almost indistinguishable from traditional eggs. Research from food science journals highlights how mung bean protein isolate forms a stable gel when heated, which is the secret to its success.
• Effortless & Impressive Crust: We use store-bought frozen puff pastry. It bakes up golden, flaky, and buttery every single time, giving you a gourmet result with minimal effort. No need to make dough from scratch!
• Tofu-Free & Simple: The filling is beautifully simple and completely free of tofu. This makes it a fantastic option for those with soy sensitivities or anyone who prefers a smoother, more custard-like consistency.
• Endlessly Customizable: This recipe is a fantastic template. You can swap out the vegetables, cheeses, and even add plant-based meats to create your perfect quiche. It works every time.

What You’ll Need: The Simple Ingredient Lineup

The magic of this quiche lies in its simple, high-impact ingredients. Here’s what you’ll need and why it works:

For the Effortless Crust

• Frozen Puff Pastry: This is our secret weapon for a bakery-quality crust without the work. A single sheet is all you need. You can also use a store-bought or homemade vegan pie crust if you prefer a more traditional base.

For the Rich & Savory Filling

• JUST Egg: The star of the show! This mung bean-based egg substitute cooks and bakes just like the real thing.
  

  Important Recipe Note: JUST Egg is now sold in a 16oz carton, not the older 12oz bottle. This recipe has been fully updated to use the entire 16oz carton. Be aware that this may require a slightly longer baking time, so trust the visual cues for doneness we provide below!

• All-Purpose Flour & Baking Powder: Just a small amount of flour helps thicken the JUST Egg mixture, ensuring it sets properly without being watery. The baking powder gives the filling a slight lift, making it fluffy and light.
• Black Salt (Kala Namak): This is non-negotiable for a truly “eggy” flavor. Kala namak is a volcanic rock salt with a high sulfur content, which mimics the taste of eggs. You can find it online or at most Indian grocery stores. Use regular salt if you must, but you’ll miss that signature flavor.

For the Vegetables & Cheese

• Veggies: We’re using a classic combination of red bell pepper, cremini mushrooms, and baby spinach. If you’re feeling adventurous, you can even use fresh herbs from your own garden—our guide to container gardening for beginners can show you how.
• Shredded Vegan Cheese: This adds a rich, savory, and gooey element. Use your favorite meltable brand—cheddar, mozzarella, or a provolone style all work wonderfully.
• Cherry Tomatoes: Halved and placed on top, these add a pop of color, a little acidity, and a beautiful roasted flavor.

How to Make the Perfect JUST Egg Quiche Step-by-Step

This process is incredibly simple and comes together in just a few steps. Find the complete measurements in the recipe card below.

1. Prepare the Crust: Preheat your oven to 375°F (190°C). While the oven heats up, let your puff pastry thaw on the counter—this usually takes about 15-20 minutes. Once it’s pliable, gently press the sheet into a 9-inch pie plate, making sure it fits snugly against the bottom and sides.
2. Sauté the Veggies (Pro Tip!): For the best texture, quickly sauté your diced peppers and sliced mushrooms in a pan over medium heat for 5-7 minutes, or until they’ve released most of their moisture. Add the spinach for the last minute and cook until just wilted. This crucial step prevents a watery quiche!
3. Assemble the Base: Scatter the sautéed vegetables evenly across the bottom of the puff pastry crust. Sprinkle the shredded vegan cheese on top of the veggies.
4. Whisk the Filling: In a medium bowl, whisk together the entire 16oz bottle of JUST Egg, all-purpose flour, baking powder, and black salt (kala namak) until the mixture is smooth and no lumps of flour remain.
5. Pour and Bake: Pour the JUST Egg mixture evenly over the vegetables and cheese in the pie plate. Arrange the halved cherry tomatoes on top. Bake for 50-60 minutes.
6. Check for Doneness: The quiche is ready when the center is set and doesn’t jiggle when you gently shake the pan. The top should be golden brown. A knife inserted into the center should come out clean.
7. Rest Before Serving: Let the quiche cool in the pan for at least 10-15 minutes. This is essential for the filling to firm up completely, ensuring clean, beautiful slices.

Expert Tips for Foolproof Quiche Every Time

Want to take your quiche from great to absolutely perfect? These little tricks make all the difference.

• Pre-Cook Your Vegetables: This is the most important tip! Vegetables like mushrooms, spinach, and bell peppers contain a lot of water. Sautéing them before adding them to the quiche releases this moisture, which is the number one secret to preventing a soggy crust and a watery filling.
• Don’t Overfill the Crust: Fill the crust about three-quarters of the way full. The JUST Egg mixture will puff up slightly thanks to the baking powder, so leaving a little room prevents it from spilling over the sides.
• Trust the Jiggle Test: Ovens can vary, so cooking times are always an estimate. Gently shake the pie plate. If the center is still very liquidy and creates a wide ripple, it needs more time. If it’s mostly firm with only a very slight, subtle jiggle right in the middle, it’s done. The residual heat will finish cooking it as it rests.
• Let It Rest: I can’t stress this enough. Letting the quiche cool for 10-15 minutes before slicing is crucial. This allows the custard to set completely, so you can cut clean, firm slices that don’t fall apart.

Get Creative: Fun Variations to Try Next

This recipe is a perfect canvas for your culinary creativity. Use it as a base and feel free to experiment with different flavor combinations.

• Classic Lorraine: Add sautéed onions and your favorite vegan bacon (cook it first!) for a plant-based take on a timeless classic.
• Mediterranean Delight: Swap the veggies for chopped artichoke hearts, sun-dried tomatoes, kalamata olives, and spinach. Use a vegan feta cheese for a briny, delicious twist that fits perfectly into a Mediterranean-inspired eating plan.
• Broccoli and ‘Cheddar’: A match made in heaven. Use finely chopped, steamed broccoli florets and a sharp vegan cheddar for a comforting and savory quiche.
• Asparagus and Mushroom: In the spring, use blanched asparagus spears and sautéed mushrooms. A sprinkle of vegan gruyere or parmesan on top would be exquisite.
• Crustless Quiche: For a gluten-free or lower-carb option, simply pour the filling into a greased 9-inch pie plate and bake. Note that the baking time may be slightly shorter, so start checking for doneness around the 40-minute mark.

How to Serve Your Quiche for the Perfect Meal

A beautiful quiche deserves the perfect partners to turn it into a complete and satisfying meal. Because it’s so rich and savory, it pairs wonderfully with something fresh and light.

• Simple Green Salad: A lightly dressed arugula or mixed green salad with a lemon vinaigrette is the perfect counterpoint. The acidity cuts through the richness of the quiche beautifully.
• Roasted Breakfast Potatoes: For a heartier brunch, serve with a side of crispy roasted potatoes seasoned with rosemary and garlic. A side of smoky vegan baked beans would also be a fantastic addition.
• Fresh Fruit Salad: A bowl of seasonal fresh fruit adds a touch of sweetness and color to the plate, making for a well-rounded and refreshing meal.
• Avocado Slices: Simply topping a warm slice of quiche with a few slices of fresh avocado and a sprinkle of flaky sea salt is pure perfection.

A Guide to Storing, Freezing, and Reheating

One of the best things about this quiche is that it’s fantastic for making ahead. The flavors actually meld and deepen overnight, making the leftovers just as delicious (if not more so!).

• To Store: Allow the baked quiche to cool completely. Cover the pie plate tightly with plastic wrap or foil, or transfer individual slices to an airtight container. Store in the refrigerator for up to 4 days.
• To Reheat: For the best texture, reheat slices in an oven or toaster oven at 350°F (175°C) for 10-15 minutes, or until warmed through. This will keep the crust nice and crisp. You can also microwave slices for about 60-90 seconds, but be aware the crust will be softer.
• To Freeze: Yes, you can freeze it! You can freeze it whole or in individual slices. First, let it cool completely, then wrap it tightly in plastic wrap followed by a layer of aluminum foil to prevent freezer burn. It can be frozen for up to 3 months. To reheat, let it thaw in the refrigerator overnight and then warm it in a 350°F (175°C) oven until hot.

Your Questions Answered: Troubleshooting & FAQs

Why is my quiche watery or not setting?
This is almost always due to excess moisture from the vegetables. As mentioned in the tips, it is essential to sauté vegetables like mushrooms, spinach, peppers, and onions before adding them to the quiche. This cooks off the water that would otherwise seep into your filling and make it runny.

How can I tell for sure when the quiche is done baking?
The visual cues are key. The top should be golden brown, and the edges should be slightly puffed. The most reliable method is to insert a thin knife into the very center of the quiche. If it comes out clean, it’s ready. If it comes out with wet, liquidy filling on it, it needs more time in the oven.

Can I make this quiche crustless?
Absolutely! To make a crustless JUST Egg quiche, simply grease your 9-inch pie plate thoroughly and pour the filling directly into the pan. The baking time will likely be a bit shorter, so start checking for doneness around the 40-minute mark.

Do I need to blind bake the puff pastry crust?
No, you do not. Puff pastry is very forgiving and bakes up beautifully without pre-baking. Just line the pan, fill it, and bake everything together. If you’re using a traditional homemade pie crust, you may want to consider blind baking it for 10-15 minutes to ensure the bottom is fully cooked and crisp.

Conclusion

There you have it—a vegan quiche that’s not just a substitute, but a spectacular meal in its own right. This JUST Egg Quiche is your new go-to for everything from lazy Sunday mornings to impressive holiday brunches.

It’s reliable, endlessly customizable, and proof that plant-based cooking is full of delicious possibilities. Give it a try, and I guarantee it will become a favorite you return to again and again.

Happy cooking!