Crustless Spinach Quiche

This crustless spinach quiche combines eggs, cream, sautéed onion and garlic, fresh spinach and mozzarella in a savoury bake. It is a practical choice for breakfast or brunch when you want quiche without making pastry.
Ingredients
- 30 ml (2 tablespoons)mild-tasting oil
- About 300 g (2 cups)onion, chopped
- 2 clovesgarlic, minced
- 283 g (10 ounces)fresh spinach
- 5 g (1 teaspoon)kosher salt
- 1.25 ml (¼ teaspoon)crushed red pepper flakes
- 6 largeeggs
- 60 ml (¼ cup)heavy cream
- About 170 g (1½ cups)shredded mozzarella
Instructions
- 1
Preheat the oven
Heat the oven to 175°C (350°F) and grease a 23 cm (9-inch) pie dish.
- 2
Sauté the vegetables
Warm the oil in a frying pan and cook the onion and garlic until translucent. Add the spinach, salt and red pepper flakes, and cook until the spinach has wilted. Take the pan off the heat.
- 3
Mix the eggs
Whisk the eggs and heavy cream together in a bowl. Stir in the cooked spinach mixture and mozzarella.
- 4
Bake the quiche
Pour the mixture into the prepared pie dish. Bake for 25–30 minutes, until set and golden on top.
- 5
Cool and serve
Leave the quiche to cool slightly before slicing and serving.
What is crustless spinach quiche?
Quiche is a savoury egg custard traditionally baked in pastry and associated with French cuisine. This American-style crustless version skips the pastry and sets the eggs, cream and fillings directly in a pie dish.
Spinach, onion and garlic bring savoury flavour, while mozzarella melts through the egg mixture. Sautéing the vegetables first helps soften them before they go into the oven.
Nutrition and macros by portion
The nutrition label shows one serving as written: 250 calories, 15g protein, 8g carbs, 18g fat.
| Portion | Adjustment | kcal | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| Lighter | Use less cream and cheese | 175 kcal | 11g | 6g | 13g |
| This serving | As written | 250 kcal | 15g | 8g | 18g |
| Hungry | Serve with roasted potatoes | 375 kcal | 23g | 12g | 27g |
The eggs contribute most of the protein, while the onion and spinach provide some of the carbohydrates. Oil, cream and mozzarella account for much of the fat. Serve a slice with salad or extra vegetables to round out the plate.
Why sauté the vegetables first?
Onion and garlic: cooking them until translucent softens their texture and takes the raw edge off their flavour.
Spinach: add it after the onion and garlic, then cook just until wilted. Removing the pan from the heat before mixing prevents the vegetables from continuing to cook in the skillet.
Getting the egg mixture right
Eggs and cream: whisk them together before adding the vegetables and cheese so the cream is distributed through the custard.
Mozzarella: stir it through rather than reserving it for the top, as the method calls for it to be mixed into the filling.
How to tell when it is done
Bake the quiche at 175°C for 25–30 minutes. The top should be golden and the centre should look set rather than liquid.
Ovens and dishes can vary, so begin checking towards the earlier end of the stated baking time. A short rest after baking makes the quiche easier to slice.
Serving it for brunch
Let the dish cool slightly before cutting so the slices have time to settle. Serve warm or at room temperature.
A crisp green salad or fresh fruit makes a simple accompaniment. Toast or roasted potatoes can make the meal more substantial.
The role of the ingredients
Spinach and onion: these provide the vegetable filling and flavour base. The onion is measured chopped, so chop it before measuring for a closer match.
Eggs, cream and mozzarella: eggs provide the structure, while cream and cheese add richness. The crustless format lets this filling set without a pastry shell.
Recipe notes & tips
- Chop the onion before measuring it so the stated amount is easier to match.
- Cook the spinach only until wilted; it will continue to soften as the quiche bakes.
- Grease the pie dish well to help the slices release cleanly.
- Let the quiche rest briefly after baking before cutting it.
- Check the centre near the beginning of the 25–30 minute baking window.
Variations
- Add mushrooms: sauté sliced mushrooms with the onion until softened.
- Use cheddar: swap the mozzarella for the same amount of shredded cheddar.
- Make it milder: leave out the red pepper flakes.
- Add herbs: stir chopped fresh chives into the egg mixture.
- Use frozen spinach: thaw it and squeeze out excess liquid before adding it to the pan.
Common mistakes to avoid
- Adding spinach too early: cook the onion and garlic first, then add spinach so it does not overcook.
- Skipping the rest: allow the quiche to cool slightly so the filling is easier to slice.
- Overbaking: check during the stated time range and remove the dish once the centre is set.
- Using an ungreased dish: grease the pie dish before adding the filling to help prevent sticking.
- Adding watery spinach: cook fresh spinach until wilted and avoid carrying excess liquid into the egg mixture.
How to store
Refrigerate leftovers in a covered container for up to 3–4 days. Reheat slices in the oven or microwave until warmed through.
Frequently asked questions
Can I make this quiche ahead?
Yes. Bake it, let it cool, then cover and refrigerate it. Reheat individual slices before serving, or serve them chilled or at room temperature.
How do I know the quiche is set?
The top should be golden and the centre should no longer look liquid. It will firm up a little more as it cools.
Can I use frozen spinach?
Yes. Thaw it and squeeze out as much excess liquid as possible before adding it to the onion and garlic.
Can I use a different cheese?
Yes. A similar quantity of shredded cheddar or another melting cheese can replace the mozzarella; the flavour and texture will differ.
Can I freeze leftovers?
You can freeze cooled slices in an airtight container. Thaw them in the fridge and reheat until warmed through; the texture may be softer after freezing.
Cook it from the original
This recipe comes from busyrecipe.com. Their page has the author’s own photos, notes and tips — the best place to cook it from.
Open the recipe on busyrecipe.com