So, is quiche healthy? The honest answer is: it depends on the crust and the filling. At its heart, quiche is eggs, milk or cream, and whatever you fill it with — and eggs and vegetables are genuinely nutritious. The trouble is the classic version, quiche Lorraine, wraps that good filling in a butter pastry crust and loads it with bacon and cheese, which pushes the calories, saturated fat and sodium up sharply. A slice of classic quiche is a very different meal from a slice of crustless vegetable quiche, even though both are called quiche.
Quiche calories at a glance
All the figures below are typical values for a 9-inch quiche cut into 6 slices, based on standard USDA-style nutrition data. Bakery and restaurant slices can be bigger, so a café slice may run higher.
| Quiche | Calories per slice | Protein |
|---|---|---|
| Classic quiche Lorraine | 410 | 15 g |
| Spinach & mushroom quiche | 320 | 13 g |
| Crustless quiche | 210 | 14 g |
| Mini quiche (about 60 g) | 180 | 7 g |
Where the calories sit
The pastry is the single biggest factor. A butter shortcrust is mostly refined flour and butter, and one slice’s share of it lands at roughly 150–200 calories — nearly half of a classic slice’s 410 calories — before you count a single egg. That is why the crustless version drops all the way to about 210 calories: you remove the crust and keep the filling.
The filling adds the rest. Heavy cream is about 50 calories a tablespoon, so the cream in a classic quiche adds up fast; swapping it for whole milk, at roughly 9 calories a tablespoon, saves around 50 calories a slice. Cheese adds roughly 110 calories an ounce, and bacon about 45 calories a rasher — two rashers and a handful of cheese can add 200 calories to a slice before the eggs are counted.
What is genuinely good about quiche
Start with the eggs. A large egg has about 70 calories and 6 g of protein, and egg protein is complete, meaning it supplies all the essential amino acids. Our guide to how many calories are in an egg breaks down the numbers by cooking method, and our protein in an egg guide covers whites, yolks and sizes. A slice of quiche typically contains about one egg’s worth of egg, which is where most of its 13–15 g of protein comes from.
Then there is the filling. Spinach, mushrooms, peppers and onions add fibre, vitamins and bulk for very few calories — a cup of raw spinach is about 7 calories — and they make a slice far more filling than the same calories of pastry would. Quiche is also one of the easiest dishes to load with vegetables without it feeling like a health chore: the egg custard carries whatever you stir in.
Served with a green salad instead of chips or extra pastry, a slice of quiche is a balanced, genuinely satisfying lunch.
Lighter swaps that actually work
You do not have to give up quiche to eat well. These swaps keep it recognisably quiche while cutting the heavy parts:
- Go crustless — it saves roughly 200 calories a slice, taking a classic slice from 410 down to about 210.
- Use milk instead of cream — it saves roughly 50 calories a slice, and the custard still sets.
- Choose part-skim cheese — it saves roughly 30 calories an ounce versus full-fat cheddar.
- Load the vegetables — spinach, mushrooms and peppers add bulk and fibre for almost no calories.
- Swap bacon for turkey or ham — it saves roughly 40 calories a slice and cuts a chunk of the sodium.
Stack two or three of these and a 410-calorie classic slice becomes a 210–260-calorie meal that still tastes like quiche. The crustless spinach and mushroom version is the best everyday version of the dish.
The verdict
As an occasional brunch dish, classic quiche Lorraine is fine — enjoy the slice, pair it with salad, and move on. But as a regular meal, the vegetable crustless quiche is the genuinely healthy version: about 210 calories, around 14 g of protein, and mostly eggs and vegetables. And if your goal is the opposite of light — a breakfast built to be big — our high calorie breakfast ideas run from 600 to 1,000 calories and show the contrast clearly: quiche is a moderate meal, not a calorie bomb, once the crust goes.
Is quiche healthy for weight loss?
A crustless vegetable quiche at about 210 calories a slice fits weight loss well, especially with a salad on the side. A classic slice at 410 calories can still fit, but it takes up a much bigger share of the day, so portion size and what you serve with it matter more.
How many calories are in a slice of quiche?
For a 9-inch quiche cut into 6 slices: about 410 calories for classic quiche Lorraine, about 320 for spinach and mushroom, about 210 for crustless, and about 180 for a mini quiche of about 60 g.
Is crustless quiche healthier?
Yes, by about 200 calories a slice, because the butter pastry alone is roughly 150–200 calories of a classic slice. The egg and vegetable filling stays the same, so you lose mostly refined pastry, not nutrition.
Is quiche keto-friendly?
A crustless quiche can be, since eggs, cheese and cream are low in carbs. A classic quiche is not, because the pastry crust adds roughly 20 g of carbs per slice.
Can I eat quiche every day?
A vegetable crustless quiche, yes — it is mostly eggs and vegetables. A classic bacon and cheese quiche every day is a lot of saturated fat and sodium, so keep that version for weekends.
How to serve and store quiche
A slice of quiche is at its best warm or at room temperature, which is part of why it works so well for brunch and packed lunches. Serve it with a green salad and a simple vinaigrette and you have a complete meal for around 250–300 calories with a crustless slice; add roasted potatoes or buttered bread and the meal climbs fast, so the side dish is where the calories usually sneak in. A slice of crustless quiche with salad is one of the easiest genuinely healthy lunches you can batch-cook.
Quiche also keeps well. Store leftovers in the fridge and eat them within 3–4 days, reheating gently until piping hot — a hot oven beats a microwave for keeping the texture pleasant. Baked slices freeze well for up to a month; thaw overnight in the fridge and reheat before serving. That makes a weekend quiche an easy weekday lunch, and it is one more reason the crustless vegetable version earns its place in a regular rotation.
