12-Egg Quiche Recipe: Crowd-Sized Breakfast Bake in One Pan

Breakfast & Brunch

12-Egg Quiche Recipe: Crowd-Sized Breakfast Bake in One Pan

A 12-egg quiche transforms breakfast from a rushed morning scramble into a showstopping centerpiece that feeds a crowd with minimal effort. This recipe delivers a golden, flaky crust filled with rich, custardy eggs and your choice of savory fillings—all baked in one pan for easy cleanup.

The secret lies in balancing egg-to-filling ratios and baking at the right temperature to ensure a set center without drying out the edges.

The crust can be store-bought for convenience or homemade for that extra-crispy edge, while the egg mixture benefits from a 15-minute rest before baking. This ensures a silky texture and prevents cracking, even when scaling up for large gatherings.

Whether you prefer classic ham and cheese or a vegetarian spin with spinach and goat cheese, the technique remains the same.

What you’ll end up with is a restaurant-quality quiche that’s warm, inviting, and ready in under an hour. The aroma alone will wake up your household, and every slice delivers that perfect balance of creamy eggs, crisp crust, and flavorful fillings.

Best served fresh from the oven, but leftovers reheat beautifully for busy mornings.

Perfect for brunch gatherings, family breakfasts, or meal prep, this quiche scales effortlessly—just adjust the pan size or make two smaller batches. The key is patience during baking and a steady hand when adding fillings to avoid soggy crusts. Let’s get baking!

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Difficulty
Easy
🌿
Diet
Vegetarian
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Calories
Med Cal

Ingredients for 12 egg quiche

Twelve eggs, one pan, and a crowd-pleasing vegetarian quiche that's restaurant-worthy yet effortless.

Ingredient Amount Notes
Large Eggs 🥚 12 whole Room temperature preferred
Heavy Cream 🥛 2 cups Full-fat for richness
Whole Milk 🥛 1 cup Warmed for smooth blend
Vegetarian Pie Crust 🍰 1 pre-made 9-inch diameter, refrigerated
Sharp Cheddar Cheese 🧀 2 cups Shredded, vegetarian-friendly
Spinach Leaves 🌿 5 oz Fresh, chopped, thawed if frozen
Red Bell Pepper 🍅 1 whole Diced, seeds removed
Yellow Onion 🧅 1 whole Diced, medium size
Garlic Cloves 🧄 4 cloves Minced, fresh preferred
Salt 🧂 1 ½ tsp Diamond Crystal preferred
Freshly Ground Black Pepper 🌶️ ½ tsp Coarsely ground
Nutritional Yeast 🍃 2 tbsp For cheesy flavor boost
Extra-Virgin Olive Oil 🫒 2 tbsp For crust brushing

The crust is your foundation—Whole Foods vegetarian pie crust is my go-to for that buttery, flaky texture without the fuss. If you're making your own, use all-purpose flour and cold butter cubes for maximum flakiness. Pre-made crusts work beautifully here, but avoid the pre-cooked kind—they're too tough. For extra insurance against a soggy bottom, blind-bake the crust for 5 minutes before adding fillings. The sharp cheddar should be the kind that melts smoothly, not the pre-shredded variety (it has anti-caking agents that prevent proper melting).

No spinach? Swiss chard or kale work just as well—just chop them finely. Substituting bell pepper with zucchini or mushrooms keeps it vegetarian-friendly. The nutritional yeast is a game-changer for that cheesy depth without dairy. If you can't find it, white miso paste at half the amount gives a similar umami punch. The garlic can be pre-minced from a jar in a pinch, but fresh is always better. For extra richness, add 1/4 cup sour cream to the egg mixture—it makes the quiche silky and luxurious.

Assemble the quiche up to 24 hours ahead and refrigerate uncovered—this helps prevent a soggy crust. Bake it straight from the fridge for 10-15 minutes longer to account for the cold start. Leftovers keep for 4 days in the fridge, but I recommend reheating slices in a 350°F oven for 10 minutes—they taste even better warmed through. For meal prep, slice and freeze portions between parchment paper for up to 3 months. The crust stays crispy when reheated this way.

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Why You'll Love This Recipe

  • No-Fuss Assembly: I swear, this comes together faster than my coffee order at the drive-thru. Twelve eggs might sound intimidating, but the crust goes in, filling follows, and 40 minutes later—boom—done. No flaky perfection required, just a sturdy base that holds its own.
  • Cheddar Cream Dream: That sharp cheddar melts into the custard like it was born there, while the heavy cream and whole milk make every bite rich without being heavy. Honestly, the first slice disappears faster than my willpower when cookies are out.
  • Lunchbox Hero: Between us, this is my secret weapon for packed lunches. Slice it up, wrap it in foil, and it stays fresh for days—no sad, soggy sandwiches here. My kids actually look forward to leftovers (yes, even on a Tuesday night).
  • Budget Breakfast Boost: Twelve eggs at once? That’s a steal for a meal that feeds six. The crust’s cheap, the cheese stretches, and you’re left with enough for tomorrow’s breakfast or a quick snack. Not the prettiest, but the taste makes up for it every time.

Step-by-step instructions for 12-Egg quiche

Here's how to assemble this crowd-pleasing quiche with silky custard and vibrant fillings.

1

Prep the Crust and Sauté the Filling

Preheat your oven to 375°F. Remove the pre-made vegetarian pie crust from the refrigerator and place it on a parchment-lined baking sheet. Brush the crust generously with 2 tablespoons extra-virgin olive oil, focusing on the sides and bottom. This creates a golden, flaky barrier that prevents sogginess. I like to use a pastry brush for even coverage.

While the oven preheats, move to your stovetop. Heat a large skillet over medium heat and add 2 tablespoons extra-virgin olive oil. Add the diced yellow onion and red bell pepper, cooking for 5-6 minutes until the onions become translucent and the peppers soften. Add the minced garlic cloves and cook for another 30 seconds until fragrant—this releases the full flavor potential of the aromatics.

2

Wilt the Spinach and Prepare the Cheese Mixture

Add the 5 ounces chopped spinach leaves to the skillet and cook for 2-3 minutes until just wilted. You want to preserve some texture, not turn it into a mushy pile. Remove the skillet from heat and let the spinach mixture cool slightly for 2 minutes—this prevents the custard from curdling when combined.

In a large bowl, whisk together the 12 whole large eggs, 2 cups heavy cream, and 1 cup whole milk until smooth. Add the 2 cups shredded sharp cheddar cheese, 2 tablespoons nutritional yeast, 1.5 teaspoons salt, and 0.5 teaspoon freshly ground black pepper. Whisk until the cheese is fully incorporated and the mixture is completely smooth. Here's the thing—nutritional yeast adds that umami depth that makes this quiche truly exceptional.

3

Assemble and Bake the Quiche

Transfer the cooled spinach mixture to the prepared pie crust, spreading it evenly. Pour the egg mixture over the spinach, tilting the pan gently to distribute it evenly. The custard should reach about ¼ inch below the crust's edge—this prevents overflow during baking. Place the quiche on the middle rack of your preheated oven.

Bake for 40-45 minutes until the custard is set and the edges are golden brown. You'll know it's done when the center no longer jiggles and a toothpick inserted comes out clean. I like to rotate the quiche halfway through baking for even browning. If the crust starts browning too quickly, tent it loosely with aluminum foil.

4

Rest and Serve

Remove the quiche from the oven and let it cool for 10-15 minutes before slicing. This resting period allows the custard to firm up slightly, making it easier to serve without losing any filling. The contrast between the warm, creamy center and crispy crust is what makes this quiche irresistible.

Slice into 12 equal wedges using a sharp chef's knife. The filling should be silky smooth with pockets of melted cheese, and the crust should be golden and flaky. Serve warm with a simple arugula salad or crusty bread to soak up any extra custard. This quiche reheats beautifully too—just warm individual slices in the oven for 5 minutes at 350°F if needed.

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Pro Tips For Making 12 Egg Quiche

  • Preheat That Crust: I learned this the hard way—skipping the pre-bake for a 12-egg quiche is a recipe for a soggy bottom. Blind-bake the crust at 375°F (190°C) for 12-15 minutes with pie weights or dried beans, then remove the weights and bake 5 more minutes. That golden, flaky base makes all the difference when you pour in the custard later.
  • Whisk Like You Mean It: The custard for 12 eggs isn’t forgiving if you’re half-hearted with the whisking. Beat the eggs, heavy cream, and whole milk until the mixture is thick and uniform—no streaks, no lumps. A hand mixer works, but I still finish by hand to make sure the sharp cheddar is fully emulsified. This step guarantees a silky texture, not a curdled mess.
  • Cheese First, Then Cream: Add the shredded sharp cheddar before mixing in the cream and milk. I was skeptical until I tried it—it melts more evenly and doesn’t clump when the custard hits the oven. Use about 3 cups of cheese (packed) for this recipe, and pulse it in a food processor for even distribution. No one wants cheddar rocks in their quiche.
  • Bake Low and Slow: A 12-egg quiche needs patience—don’t blast it at 425°F (220°C) like a pie. Start at 350°F (175°C) for 45 minutes, then drop to 325°F (160°C) for the final 20-25 minutes. This prevents the top from browning too fast while the center stays runny. A toothpick should come out slightly damp, not wet. Let it rest 15 minutes before slicing—yes, even if you’re starving.

Dietary considerations for this recipe

Vegetarian-Friendly Base

This quiche is already vegetarian by design, thanks to its sharp cheddar cheese, spinach, and nutritional yeast—no meat or dairy substitutes needed. The red bell pepper and onion add vibrant color and sweetness without compromising the dish's integrity.

For extra protein, stir in ½ cup cooked chickpeas or ¼ cup crumbled feta—both work beautifully with the egg mixture. 🌱

Gluten-Free Adaptation

Swap the pre-made crust for a gluten-free pie crust like Pillsbury GF crust or a homemade version with almond flour and xanthan gum. Brush it with olive oil as directed, and blind-bake for 5 minutes to prevent a soggy bottom.

The egg mixture remains unchanged—it’s naturally gluten-free! Just ensure all fillings (like nutritional yeast) are certified gluten-free if needed.

Dairy-Free Options

Replace the heavy cream and milk with full-fat coconut milk (2 cups total) for a rich, creamy texture. Use dairy-free sharp cheddar (like Violife) and omit the nutritional yeast if it contains milk derivatives.

For extra tang, add 1 tbsp lemon juice to the egg mixture. The crust can stay the same, but check for dairy in the pie dough—Pepperidge Farm GF crust is typically dairy-free.

Nut-Free Adjustments

If nut allergies are a concern, skip the almond-flour crust and opt for a gluten-free oat flour crust instead. Ensure all pre-made crusts and fillings (like nutritional yeast) are nut-free.

The original recipe’s fillings—spinach, bell pepper, onion, and cheese—are naturally nut-free, so no other changes are needed. Always double-check labels, though!

Low-Carb Swaps

For a lower-carb version, use a cauliflower crust (pre-made or homemade) and reduce the cheese to 1 cup to cut carbs further. Boost volume with extra spinach (8 oz) and mushrooms (1 cup, sliced) for heartiness.

The egg mixture stays the same, but the crust’s fiber content will help balance blood sugar. Bake as directed—cauliflower crusts brown faster, so watch closely after 30 minutes.

Nutrition facts

Servings 12
Amount Per Serving
Calories 380kcal
% Daily Value *
Total Fat 28g36%
Saturated Fat 16g80%
Cholesterol 280mg93%
Sodium 620mg27%
Total Carbohydrate 12g4%
Dietary Fiber 2g8%
Sugars 5g
Protein 22g44%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Frequently asked questions

1

Can I use fewer eggs if I'm making individual quiches?

This recipe scales perfectly. For 6 individual quiches, use 6 eggs, 1 cup heavy cream, and ½ cup milk. Keep all other ingredients proportional—halve the cheese, spinach, and veggies. The baking time remains the same (40-45 minutes), but use 6-inch pie pans for even cooking.

2

Why does my quiche custard come out watery?

Watery custard usually means underbaking or too much liquid. Bake until a toothpick comes out clean (40-45 minutes at 375°F). For extra insurance, let the egg mixture rest for 15 minutes before pouring—this thickens it naturally. If using dairy-free milk, reduce by 2 tablespoons to compensate for lower fat content.

3

How do I prevent a soggy crust?

Prevent sogginess with these 3 steps:

  1. Blind-bake the crust for 5 minutes before adding fillings,
  2. Brush the crust with olive oil before baking, and
  3. Don't overfill—keep the egg mixture ¼ inch below the crust edge. For extra protection, sprinkle ¼ cup crushed cornflakes on top of the filling before adding the custard.
4

Can I make this quiche ahead of time?

Yes! Assemble the quiche up to 24 hours ahead and refrigerate uncovered. Bake straight from the fridge, adding 10-15 minutes to the baking time. For best results, reheat slices in a 350°F oven for 10 minutes—they taste even better warmed through. The crust stays crispy when reheated this way!

5

What's the best way to reheat quiche leftovers?

Slice the quiche and reheat individual portions in a 350°F oven for 10 minutes on a baking sheet. For microwave reheating, wrap slices in a damp paper towel and heat for 30-45 seconds—this prevents drying. Avoid reheating in the microwave without moisture, as it makes the custard rubbery. The crust stays crispy when reheated properly!

★★★★★4.9(12 reviews)
Categories Breakfast & Brunch