This classic quiche traps silky eggs and cheese around a generous layer of garlicky spinach inside a crisp, golden crust. It comes together in about an hour and a half, most of that hands-off, so you can unwind while it bakes.

You get a slice that holds together beautifully with a creamy center you can actually taste, not just a block of rubbery custard. The buttery pastry and the savory filling balance each other without a heavy hand.

What Makes This Quiche So Good

The custard sets with just enough cream to feel lush but not heavy, so the spinach stays the star. Each bite gives you tender leaves against a sharp, nutty Gruyère that melts into the egg mixture instead of sitting on top.

You can serve it warm or at room temperature, which makes it just as welcome for a weekend brunch as it is for a quiet Tuesday dinner. Once you nail the crust and the custard ratio, it becomes one of those reliable dishes you turn to without a second thought.

Ingredients

1 refrigerated pie crust (or homemade, rolled to fit a 9-inch pan): use a deep-dish pan if yours is shallow
1 tbsp olive oil: or avocado oil
1 small yellow onion, diced fine: about ½ cup
2 cloves garlic, minced: or ¼ tsp garlic powder in the custard
5 oz fresh baby spinach: about 4 packed cups, roughly chopped if leaves are large
4 large eggs: at room temperature for a smoother custard
1¼ cups heavy cream: half-and-half works but yields a slightly softer set
1 tsp Dijon mustard: a small amount sharpens the richness
½ tsp salt: plus more for the spinach
¼ tsp black pepper: fresh-cracked gives the best flavor
⅛ tsp nutmeg: freshly grated, just a whisper
4 oz Gruyère cheese, shredded: Swiss or a mild cheddar can stand in
¼ cup grated Parmesan: adds a salty crust on top

Variations

Add bacon: cook 4 strips until crisp, crumble, and fold in with the spinach for a smoky, meaty layer. This turns it into a heartier quiche.
Swap the cheese: sharp white cheddar gives a stronger bite, fontina melts silkier, and a smoked gouda pulls the whole dish toward a campfire note.
Use frozen spinach: thaw 1 cup frozen chopped spinach, squeeze it completely dry, and skip the sauté step. The texture is denser but still works if you press out every drop of water.
Dairy-free: replace the heavy cream with full-fat oat cream (the kind labeled “barista” or “whipping”) and use a firm dairy-free cheese that melts well. The custard will set a bit softer.
Add a hint of heat: a pinch of red pepper flakes in the spinach or a few drops of hot sauce in the custard wakes everything up without tasting spicy.

Banana Bread French Toast is another reader favorite breakfast worth making next.

How to Make Creamy Quiche Florentine

Step 1: Blind Bake the Crust

Preheat the oven to 375°F (190°C) and set a rack in the lower third. Press the pie crust into a 9-inch pan, crimp the edges, and line it with parchment paper. Fill with pie weights or dried beans, then bake for 15 minutes until the edges look dry and just begin to turn pale gold.

Pull out the parchment and weights and bake the bare crust another 5 to 7 minutes. The bottom should feel firm and no longer wet. This extra bake time seals the pastry so the liquid custard never soaks in.

Step 2: Sauté the Spinach

Warm the 1 tbsp olive oil in a large skillet over medium heat. Add the diced onion and cook for about 4 minutes until soft and translucent, then stir in the garlic and cook 30 seconds more. Pile in the 5 oz spinach, a big handful at a time, and toss with a pinch of salt until the leaves just wilt, about 2 minutes total.

Slide the spinach mixture into a fine-mesh strainer and press it against the mesh with the back of a spoon. You want to force out as much liquid as possible; leftover moisture is the fastest way to a soggy quiche. Let it cool for a minute while you make the custard.

Step 3: Whisk the Custard

In a large bowl, whisk the 4 eggs until the yolks and whites are fully blended and a little frothy. Pour in the 1¼ cups heavy cream, 1 tsp Dijon mustard, ½ tsp salt, ¼ tsp pepper, and ⅛ tsp nutmeg, then whisk again until you have a pale, uniform liquid.

Stop once it is smooth. Over-whisking beats in too much air, which makes the quiche puff and crack instead of setting into a velvety slice.

Step 4: Assemble and Bake the Quiche

Scatter half the shredded Gruyère across the bottom of the warm crust. Spoon the spinach mixture evenly over the cheese, then top with the remaining Gruyère and all the Parmesan. Slowly pour the custard over the filling, letting it seep into every gap.

Bake at 375°F (190°C) for 35 to 40 minutes. The quiche is done when the edges are set and the center jiggles just slightly, like a soft set custard, not a wave. An instant-read thermometer poked into the middle should read about 170°F (77°C). The carryover heat will finish setting it as it rests.

Step 5: Slice and Serve

Let the quiche cool on a wire rack for at least 15 minutes before cutting. Run a thin knife around the edge, then slice into wedges with a serrated knife. The crust will be crisp and flaky, and the custard will hold a clean cut.

Serve warm or at room temperature, and watch the steam curl up from the creamy green and gold layers.

A Few Key Tips

Pat the spinach really dry: after sautéing. Even a tablespoon of extra water can create a gap between the custard and the crust while it bakes.
Room-temperature eggs blend faster: and help the custard cook evenly. Set them on the counter while the oven preheats.
Use a glass pie pan if you have one: so you can check the color of the crust through the bottom. If the sides brown too fast, tent them with foil.
Rest the quiche before slicing: or the custard will spill out like a liquid. That 15 minute wait is when the slice firms up.
Leftover slices reheat beautifully: in a 300°F (150°C) oven for 10 minutes and taste almost fresh. The microwave works in a pinch but softens the crust.

Bake times by pan:

Pan material	Blind bake (with weights)	Blind bake (bare)	Final bake
Glass	15 mins	7 mins	38-42 mins
Dark metal	12 mins	5 mins	33-37 mins
Light metal	15 mins	6 mins	35-40 mins

Storing Leftovers

Refrigerate: wrap the whole quiche or individual slices in foil once they are fully cool. It stays good for up to 4 days.
Reheating: place slices on a baking sheet in a 300°F (150°C) oven until warmed through, about 12 to 15 minutes. The crust recrisps and the custard stays creamy.
Freeze: wrap a cooled whole quiche in plastic wrap then foil and freeze for up to 2 months. Thaw overnight in the fridge before reheating from cold.

What To Serve With This Quiche

A simple green salad with a bright vinaigrette cuts the richness of the eggs and cream. Toss some arugula with lemon juice and olive oil so the peppery bite balances each forkful.

Roasted asparagus or steamed green beans also work well because their earthy snap complements the spinach instead of competing. If you want something warm and comforting, a bowl of tomato soup on the side turns the quiche into a cozy brunch or light dinner.

Frequently Asked Questions

Can I used milk instead of heavy cream?

Yes, but the custard sets softer and the texture is less silky. Whole milk works best; low-fat can make the quiche watery. You will get a looser slice that still tastes good.

My quiche always sinks in the middle. What happened?

It likely overbaked or cooled too fast. Pull the quiche when the center still jiggles slightly and let it rest on the counter, not a cold surface. A gentle carryover finish prevents the collapse.

Does this quiche freeze well?

Yes, a fully baked and cooled quiche freezes beautifully for up to 2 months. Wrap it tightly in plastic and foil, then thaw overnight in the fridge before reheating.

Can I skip the crust?

Absolutely. Grease the pie pan and pour the filling straight in. Bake at 350°F (175°C) for about 30 to 35 minutes, just until the center barely jiggles. The edges will pull away slightly and the whole thing will taste like a fluffy spinach custard.

How far ahead can I make this?

You can blind bake the crust and prep the spinach mixture a day in advance. Store the spinach in the fridge and assemble the quiche when you are ready to bake, adding about 5 extra minutes to the final bake time.