Quick Spinach Bacon Crustless Quiche (Ready in 40 Minutes)

This crustless quiche recipe is what I make when I want a hot, satisfying dinner on the table fast, with barely any cleanup. The oven does most of the work while I pull together a quick salad.

It’s a silky egg custard loaded with crispy bacon, wilted spinach, and sharp cheddar. No crust means less work, fewer carbs, and all the flavor.

What Makes This Quiche So Good

The texture is the main reason. The eggs and cream bake into a tender custard that’s light but still hearty enough to be a meal.

And because there’s no crust involved, it comes together in one bowl and goes into the oven in the time it takes to preheat. You wind up with a golden, puffed top that settles into a creamy slice as it cools.

The combination of salty bacon, melted cheddar, and earthy spinach just works, but you can swap in whatever vegetables or protein you have.

Ingredients

• 6 large eggs: they set the structure and richness of the custard
• 1 1/2 cups whole milk: keeps the quiche soft and silky; half-and-half works for a richer result
• 1/4 teaspoon salt: fine sea salt or kosher
• 1/4 teaspoon black pepper: freshly ground if you can
• Pinch of nutmeg: optional, but it rounds out the savory notes
• 4 slices bacon: cooked until crisp and crumbled (about 1/3 cup)
• 2 cups fresh baby spinach, roughly chopped: or 1 cup frozen spinach, thawed and squeezed completely dry
• 1 cup shredded sharp cheddar cheese: use a block and shred it yourself for the smoothest melt
• 1/4 cup finely chopped onion: yellow or sweet onion
• Butter: for greasing the pie dish

Variations / Substitutions

• Protein swaps: Morning sausage, diced ham, or sautéed mushrooms all work. Just cook and drain off any fat or liquid before adding.
• Cheese: Gruyère or fontina add a nuttier, more complex flavor. A mix of cheddar and smoked gouda is great too.
• Vegetables: Roasted red peppers, steamed broccoli florets, or caramelized leeks are solid choices. Avoid any super watery veg unless you cook it down first.
• Dairy-free: Use unsweetened oat milk and a dairy-free shredded cheese that melts well. The texture will be a touch softer.
• No bacon: Skip the meat and add a little extra butter when cooking the onions; the quiche will still taste rich and savory.

If you want a crust after all, the classic Quiche Lorraine is always a winner.

How to Make Quick Spinach Bacon Crustless Quiche

Step 1: Whisk the Egg Custard

Preheat the oven to 350°F (175°C) and lightly butter a 9-inch pie dish. Crack the 6 eggs into a large bowl, add the 1 1/2 cups whole milk, 1/4 teaspoon salt, 1/4 teaspoon pepper, and a pinch of nutmeg if using. Whisk until the yolks and whites are completely blended and the mixture looks pale and a little frothy, about 30 seconds.

It doesn’t need to be foamy, just smooth so the custard bakes evenly. This step sets the texture, so make sure there are no streaks of egg white left behind.

Step 2: Cook the Bacon and Onions

Cook the 4 bacon slices in a skillet over medium heat until crispy, about 5 to 7 minutes. Transfer the bacon to a paper towel to drain, then crumble it. Keep about a tablespoon of the fat in the pan and sauté the 1/4 cup finely chopped onion over medium heat until soft and translucent, about 3 minutes. Add the 2 cups chopped spinach and stir until just wilted, about 1 minute. Remove from heat.

The onions should turn sweet without browning much. Cooking the spinach lightly gets rid of excess moisture that would water down the quiche. You’ll smell that rich bacon-onion aroma right away.

Step 3: Layer the Fillings

Scatter the crumbled bacon, spinach-onion mixture, and 1 cup shredded cheddar cheese evenly in the buttered pie dish. Give it a quick stir to mix the fillings together. Slowly pour the egg custard over everything, letting it seep into the gaps. Use a fork to nudge the cheese and fillings under the surface if needed, so they’re not all floating on top.

You want a nice even distribution, but don’t over-stir or you’ll break up the spinach too much. The dish will look full, but the quiche will puff as it bakes and settle back as it cools.

Step 4: Bake Until Golden

Slide the quiche into the 350°F (175°C) oven and bake for 30 to 35 minutes. It’s done when the edges are set and the center has a slight jiggle, like a soft Jell-O. The top should be golden with some darker spots where the cheese poked through. If the edges are browning too fast, tent loosely with foil for the last 5 minutes.

A knife inserted an inch from the center should come out clean, though a little moisture is fine. The quiche will continue to firm up as it rests out of the oven, so don’t overbake or the eggs can turn rubbery.

Step 5: Slice and Serve

Let the quiche sit for 5 to 10 minutes before slicing. That short rest lets the custard set so the wedges hold their shape. Run a thin knife around the edge if needed, then cut into 4 or 6 wedges and use a spatula to lift them out. Serve warm, straight from the dish.

The slices have a creamy, almost silky center and a golden top, with ribbons of spinach and flecks of bacon throughout.

A Few Notes Before You Start

• Use room temperature eggs and milk for a smoother custard that bakes more evenly.
• Shred your own cheese. Pre-shredded cheese often has anti-caking agents that can affect the melt and make the custard slightly grainy.
• This quiche is forgiving of swaps. Try Gruyère or fontina for a nuttier flavor, or use cooked breakfast sausage instead of bacon. Just keep the total volume of add-ins about the same.
• If you use frozen spinach, squeeze out every last drop of water. Any hidden moisture will pool during baking.

Bake times by pan size:

Storing and Reheating Leftovers

• Refrigerate: Store covered in the fridge for up to 4 days. The quiche holds its texture well.
• Reheating: Warm slices in a 300°F oven for about 10 minutes or microwave in 30-second bursts until hot.
• Serve Cold: It’s also good chilled, straight from the refrigerator, for a quick lunch.

What to Serve With Crustless Quiche

A simple green salad with a sharp vinaigrette cuts through the richness of the egg and cheese. A bowl of tomato soup turns it into a cozy dinner. For brunch, fresh fruit and strong coffee are all you need.

Frequently Asked Questions

Can I make this quiche the night before?

Yes. Bake and cool it completely, then cover and refrigerate. Serve cold or reheat the next morning.

Why did my quiche come out watery?

Extra moisture from vegetables is the most common culprit. Make sure onions and spinach are cooked until their liquid is released and evaporated, and that bacon is drained well.

Can I freeze crustless quiche?

Yes. Wrap cooled slices tightly in plastic and foil, freeze for up to 2 months. Thaw overnight in the fridge and reheat in a low oven.

Can I use just egg whites?

It will work, but the texture will be much firmer and less rich. A mix of 4 whole eggs and 4 whites is a decent middle ground.

Quick Spinach Bacon Crustless Quiche Recipe

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Prep Time 10 minutes mins

Cook Time 30 minutes mins

Total Time 40 minutes mins

Servings: 4 servings

Calories: 310

Ingredients Method Notes

Ingredients

  

• 6 large eggs
• 1 1/2 cups whole milk
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• Pinch of nutmeg (optional)
• 4 slices bacon, cooked and crumbled
• 2 cups fresh baby spinach, roughly chopped
• 1 cup shredded sharp cheddar cheese
• 1/4 cup finely chopped onion
• Butter, for greasing

Method

 

1. Preheat oven to 350°F (175°C) and butter a 9-inch pie dish. Whisk eggs, milk, salt, pepper, and nutmeg until smooth.
2. Cook bacon until crisp, remove and crumble. Sauté onion in the bacon fat until soft, then wilt spinach in the same pan.
3. Scatter bacon, spinach-onion mixture, and cheese in the dish. Pour the egg mixture evenly over the fillings.
4. Bake for 30 to 35 minutes, until the edges are set and the center jiggles slightly.
5. Cool for 5 to 10 minutes, then slice into wedges and serve warm.

Notes

Whole milk gives a creamy texture; half-and-half makes it even richer. Feel free to use whatever cooked vegetables or meat you have on hand, just ensure they’re well-drained to avoid a soggy quiche.