8 Egg Crustless Quiche Recipe: Protein-Packed Breakfast in One Pan

This 8-egg crustless quiche recipe delivers a protein-packed breakfast in just 30 minutes—no crust, no fuss, all flavor. The secret lies in whisking eggs to silky perfection, blending them with dairy for a rich, custardy texture, and letting the oven transform everything into a golden, set masterpiece.

I developed this version after years of testing, ensuring every bite is tender, creamy, and packed with savory goodness without the extra carbs. What sets this quiche apart is its versatility—swap in spinach, feta, bacon, or mushrooms to customize it for any taste.

The eggs act as both the binding agent and the star, creating a dish that’s hearty enough for brunch but light enough for lunch. No need for fancy equipment: a standard oven and one skillet do the job beautifully, making this the ultimate weeknight solution.

By the time it emerges from the oven, you’ll have a perfectly set quiche with a subtle golden hue and a creamy interior that practically melts in your mouth. The aroma alone will have everyone asking what’s for breakfast.

Serve it warm or at room temperature—either way, it’s a crowd-pleaser that keeps well for leftovers. Whether you’re feeding a family or meal prepping for the week, this recipe scales effortlessly. Let’s get cooking—your future breakfasts just got easier.

Ingredients for 8 egg crustless quiche

Eight eggs, dairy, and greens—this quiche comes together faster than you can say 'breakfast'

Eggs are the star, so grab the freshest you can find—local farms or the refrigerated case at Whole Foods or Trader Joe's have the best quality. The heavy cream and milk should be cold when you start, but let them sit at room temp for 10 minutes before blending for a smoother texture. Sharp cheddar gives the best flavor, but Gruyère or Monterey Jack work too if you're craving something different. The spinach? Baby spinach leaves from the grocery store's salad section are perfect—they're pre-washed and ready to use.

No feta? Skip it or use crumbled goat cheese at half the amount. Short on sharp cheddar? Parmesan mixed with mild cheddar works in a pinch. The garlic can be omitted if you're not a fan, but trust me—it makes the whole dish sing. For the olive oil, any good quality EVOO works, but California extra-virgin has the best flavor. If your quiche ends up too runny, the flour is your secret weapon—just whisk in a tablespoon at a time until it thickens.

This quiche is best served fresh from the oven, but leftovers reheat beautifully. Store in an airtight container in the fridge for up to 4 days, or freeze portions for 2 months. I like to make a double batch on Sundays—one for breakfast, one for lunches. The cheese gets even more flavorful as it sits, so the next day is often the best. For meal prep, slice before freezing for easy portions.

Step-by-step instructions for protein-packed crustless quiche

Here's how to make this rich, cheesy quiche in under 30 minutes with no crust.

Heat the 1 tablespoon extra-virgin olive oil in a 9-inch oven-safe skillet over medium heat. Add the 2 minced garlic cloves and cook for 30 seconds until fragrant—you'll smell that fresh garlic aroma filling your kitchen. Immediately add the 4 cups chopped fresh spinach and sauté for 2-3 minutes until just wilted. The spinach should be bright green and tender, not mushy or browned.

Use a wooden spoon to push the spinach to one side of the skillet, creating space for the egg mixture. This helps distribute the filling evenly. If your skillet isn't oven-safe, transfer the spinach to a baking dish after sautéing. Don't drain the spinach—those juices add flavor to the base.

In a large bowl, whisk together the 8 whole large eggs (room temperature), 1 cup heavy cream, and 0.5 cup whole milk until completely combined—no streaks should remain. This ensures a smooth, creamy texture. Gradually whisk in the 1.5 cups shredded sharp cheddar cheese, 0.5 cup crumbled feta cheese, 0.5 teaspoon salt, and 0.25 teaspoon black pepper until evenly distributed.

For extra insurance against lumps, I like to strain the mixture through a fine-mesh sieve into another bowl. This removes any cheese clumps that could make the quiche grainy. The mixture should be thick but pourable—if it's too thick, whisk in 1 tablespoon all-purpose flour to help it set properly.

Pour the egg mixture evenly over the sautéed spinach, tilting the skillet gently to distribute it. Sprinkle any remaining cheese on top for extra flavor. Transfer the skillet to a preheated 375°F oven and bake for 20-25 minutes until the top is set and golden brown, and the center no longer jiggles when gently shaken.

I test doneness by inserting a knife near the center—it should come out clean with no wet egg clinging to it. If the edges brown too quickly, loosely cover them with aluminum foil after 15 minutes to prevent over-browning while the center finishes cooking. The quiche is ready when it's firm to the touch all over.

Remove the quiche from the oven and let it rest for 5-10 minutes before serving. This resting period allows the center to fully set and makes it easier to slice. The quiche will be slightly puffed in the center but will firm up as it cools.

Slice into 6 equal wedges (about 1/6 of the pie) and serve immediately while warm. The contrast of creamy custard, melted cheddar, tangy feta, and wilted spinach makes every bite satisfying. Store any leftovers in the refrigerator for up to 3 days—just reheat in the microwave for 30-45 seconds until warmed through.

Pro cooking tips for perfect results

Egg Whisking Perfection

Whisk your 8 eggs with the heavy cream and milk until the mixture is completely smooth—no streaks at all. I use a hand mixer on medium speed for 30 seconds to ensure a silky texture.

If you're whisking by hand, take your time—about 2-3 minutes of steady whisking makes all the difference. The goal is to create a uniform custard that sets evenly in the oven. 🥚

Preventing Overbrowning

Quiches often brown too quickly on the edges while the center stays runny. To avoid this, loosely tent the skillet with aluminum foil after 15 minutes of baking at 375°F. This keeps the edges from overcooking while the center finishes setting.

I also recommend using a 9-inch oven-safe skillet—it distributes heat evenly and prevents hot spots. A dark-colored skillet (like cast iron) will brown faster, so opt for stainless steel if you're concerned about browning.

Cheese Consistency Matters

Freshly shredded cheese is key—pre-shredded cheese contains anti-caking agents that make your quiche grainy. Use a box grater for sharp cheddar and crumble the feta by hand for even distribution. If your mixture looks too thick, whisk in 1 tablespoon all-purpose flour to help it set properly.

For extra creaminess, I sometimes add 2 tablespoons sour cream to the egg mixture—it adds a subtle tang and luxurious texture. 🧀

Spinach Prep Secrets

Don’t overcook the spinach—it should be bright green and just wilted when you pour the egg mixture. Overcooking turns it mushy and dulls its flavor. I like to use baby spinach because it’s tender and doesn’t need much cooking time.

If you’re using frozen spinach, thaw and drain it thoroughly first, then squeeze out excess moisture with a clean kitchen towel. This prevents a watery quiche. 🌿

Testing for Doneness

The knife test is foolproof: Insert a thin knife near the center of the quiche. If it comes out clean with no wet egg clinging to it, your quiche is ready. If it’s still slightly jiggly, return it to the oven for another 2-3 minutes.

The quiche should be set but still slightly custardy—overbaking makes it dry and rubbery. For a foolproof finish, bake until the edges are golden and the center is just firm to the touch. ✨

Frequently asked questions