This quiche combines sautéed mushrooms, smoked beef, and a cream-and-egg custard in a pastry shell, baked until just set. It covers protein, fat, and vegetables in one pan, which makes it genuinely useful for brunch, lunch, or a light dinner. It reheats well, so one bake gets you multiple meals.
What makes this version work
Two things matter most here. First, cook the mushrooms until all their liquid has evaporated and they start to brown — watery mushrooms will make the custard soggy and prevent it from setting cleanly. Second, the custard ratio needs to stay balanced: the combination of low-fat milk and calcium-enriched cheese keeps the filling from turning rubbery while still giving it enough structure to slice neatly. Pull the quiche when the center has a slight wobble — it will firm up as it rests off the heat, and that resting time is not optional.
Substitutions that actually work
- Smoked beef: Smoked turkey or a firm smoked sausage (sliced thin) both work. Avoid anything with high fat content that will render out and pool in the custard.
- Mushrooms: Cremini give more flavor than white button mushrooms. Shiitake work well but chop them smaller so they distribute evenly. Skip canned mushrooms — too much residual moisture.
- Cheese: Gruyère is the natural fit. Emmental or a sharp cheddar are solid backups. Pre-shredded cheese has anti-caking coatings that can affect how smoothly it melts, so grating your own is worth the two minutes.
- Pastry shell: A store-bought deep-dish pie shell is a perfectly reasonable shortcut and saves about 30 minutes.
Leftovers and meal prep
Cooled quiche keeps in the fridge for up to 4 days, covered. For meal prep, slice it before storing so you can pull individual portions without uncovering the whole thing repeatedly. Reheat slices in a 325°F (160°C) oven for 10–12 minutes — this keeps the pastry from going soft, which is exactly what a microwave will do to it. For longer storage, freeze individual slices wrapped tightly in plastic and then foil; they keep well for up to 2 months. Thaw overnight in the fridge before reheating. Serve alongside a simple green salad and you have a complete meal without any additional cooking.
Mistakes to avoid
- Skipping the blind bake: If the recipe calls for pre-baking the shell, do it. Pouring custard into a raw pastry base almost always produces a soggy bottom that never fully crisps up.
- Adding filling ingredients while they are still hot: Hot mushrooms and beef added straight to the egg mixture can start to cook the eggs before the quiche even goes in the oven. Let the cooked filling cool for at least 5 minutes first.
- Overfilling the shell: Leave about a quarter-inch of clearance at the top of the pastry. Custard expands slightly as it bakes, and overfilling leads to spills and uneven setting at the edges.
- Cutting too soon: Slicing before the quiche has rested at least 10 minutes means the custard is still loose — skip the garnish, not the rest time. The slices will fall apart and you lose the clean presentation that makes this worth the effort.
- Under-seasoning the custard: Taste the egg and milk mixture before it goes in. Smoked beef adds salt, but the custard itself still needs seasoning or the finished quiche will taste flat.
Traditional French Mushroom and Smoked Beef Quiche
Ingredients
Short Pastry Ingredients
200 grams all purpose flour (plain flour Australia and UK)
100 grams butter
30 grams water - cold
5 grams salt
Filling Ingredients
50 grams shiitake mushrooms- 50 grams white fungus
50 grams Portobello mushrooms
50 grams mushrooms - French
100 grams bacon - beef
20 grams Gruyere cheese
2 medium eggs
1 medium yellow onion
1 cup cream - thick cream, if any- 1 teaspoon thyme leaves
- 1 pinch salt
1 pinch ground black pepper
1 pinch ground nutmeg
Instructions
- In a food processor, add flour and salt. Add butter when the consistency resembles a coarse grain, and add cold water gradually.
- Sprinkle a little flour on top of the placemat to make the pastry. Shape the dough with a pastry roller by the thickness of the taste. Shape into a mold, and do not forget to prick the bottom with a fork, so there is air in the cooking process. Refrigerate for 15 to 20 minutes.
- Preheat oven to 220 degrees Celsius. Bake in the oven by placing beans (beans) on top to bottom crust does not bloom (can also use pie weights). After that, lift the beans and return the crust to the oven for 5 minutes. If necessary, wrap with aluminum foil to prevent burning.
- Over medium heat, melt butter in a saucepan and then enter the red onion. Toast until fragrant. Add the mushrooms, salt, and pepper. Raise the heat, and let the water out of the mushrooms reabsorb for approximately 8 minutes. Sprinkle with thyme leaves. Remove and set aside.
- Turn on the oven to 350 degrees Fahrenheit. In a bowl, beat cream, egg, salt, and pepper. Put mushroom mixture into the crust and cream and eggs on it. Add cheese. And a little leaf parsley when pleased.
- Bake the quiche for about 25 minutes or until the dough becomes elastic. Serve in warm conditions, coupled with a bit of lettuce.
Nutrition
Frequently asked questions
Can I use regular ground beef instead of smoked beef?
Regular ground beef works, but the flavor profile changes significantly — you lose the smoky depth that balances the cream and eggs. If using ground beef, brown it thoroughly to 160°F (71°C), drain off any excess fat, and consider adding a small amount of smoked paprika to compensate for the missing smokiness.
How do I know when the quiche is fully cooked?
The edges should be set and the center should wobble slightly but not slosh when you gently shake the pan. An instant-read thermometer inserted into the center should read around 165–170°F (74–77°C) to confirm the custard is safe and fully cooked through.
Can I make this quiche ahead of time for a gathering?
Yes — bake it the day before and refrigerate it whole, uncovered for the first hour then loosely covered. Reheat the entire quiche at 325°F (160°C) for about 20 minutes before serving. It holds its texture well and is actually easier to slice cleanly when it has been fully chilled and then rewarmed.
Is this filling enough to serve as a main meal, or do I need sides?
A standard slice provides a solid amount of protein from the eggs, smoked beef, and cheese, so it stands on its own as a main. A simple green salad or some roasted vegetables on the side rounds out the meal without much extra effort.
Try these next
- Hearty Beef Mushroom Stroganoff
- Wild Venison Mushroom Pies
- Savory British Beef Pies
- Mediterranean Lamb Feta Pie
