Leek Mushroom Gruyère Quiche! Packed with so much amazing flavor from the leeks, earthiness from the mushrooms and the delicious gruyère cheese! This quiche will be the star at your next brunch!
Breakfast for Dinner. Whoever thought of this = Genius.
I don’t know about you, but I can eat eggs at any time of the day. I love them. Scrambled, hard-boiled, sunny side up, fried. . you name it, I’ll eat it. My love for eggs, and well, any kind of savory food with a pastry crust for that matter, is probably the reason why I love quiche so much. I love that you bite into it and you usually get more than what you see on the outside. The filling is usually awesome. Mushrooms, spinach, cheese. . ah. . heaven!
Now, I actually don’t like my quiche to be too rich. I know this is crazy talk . . but I always cut down on the heavy cream and try to use as little as possible. For me, the eggs are binding everything together anyway. If you like quiche, you must give this one a try. It’s delicious. When cooking the mushrooms and leeks, the aroma that will fill your kitchen is amazing. . I actually love the smell of 
The quiche can be eaten at any time of the day and would be great for entertaining a smaller group of friends at a moment’s notice. See the recipe card below for freezing and re-heating tips. I hope you enjoy!
Leek, Mushroom and Gruyère Quiche
Ingredients
For the crust:
- 1¼ cups all-purpose flour
- ¾ teaspoon sea salt
- 1 stick 1/2 cup very cold unsalted butter; cubed and immediately added
- ¼ cup cold ice water
For the filling:
- 2 tablespoons extra virgin olive oil
- 1 medium-sized leek diced (using only the white and tender green part towards the bottom)
- 3 to 4 cups cremini or baby portobello mushrooms sliced
- 2 cloves garlic minced
- 1 teaspoon fresh rosemary finely chopped
- 1 teaspoon fresh sage finely chopped
- kosher salt
- freshly ground black pepper
- 1/4 cup dry white wine or chicken stock
- 3 large eggs
- 1/2 cup heavy cream
- 1 cup Gruyère cheese freshly grated
- 2 tablespoons fresh parsley finely chopped
- 1 teaspoon fresh thyme leaves only
Special equipment needed:
- food processor or pastry blender or you could even use a fork
- rolling pin
- tart baking pan
Instructions
- Using your food processor, combine the flour, salt and butter and pulse for about 5 seconds. Sprinkle the ice water over the flour mixture and pulse until the pastry dough just begins to come together, for about 10 to 15 seconds; you should still be able to see small pieces of butter in it.
- Transfer the pastry dough to a lightly floured work surface, gather it together to combine everything and roll out to a 12 inch circle. Transfer the dough to a tart pan (I highly recommend the ones with removable bottoms) and refrigerate while you prepare the filling (You can also roll out the dough and use it right away if needed).
- Preheat your oven to 400 degrees. Heat the olive oil in a large sauté pan over medium-high heat. After a minute or two, add the leeks and cook for about 3 minutes until softened.
- Add the mushrooms, garlic, rosemary and sage and season with salt and pepper. Cook for about 5 minutes, stirring occasionally.
- Add the white wine (or chicken stock) and stir to pick up the lovely browned bits on the bottom of your pan. Let the wine cook for about a minute or 2. Remove the pan from the heat and allow to cool slightly. Remove your pastry crust from the refrigerator and set aside.
- Using a medium-sized mixing bowl, whisk together the eggs, heavy cream, Gruyère, parsley and thyme. Fill the tart pan with the cooled mushroom mixture. You can smooth down so it evenly fills the pan. Pour in the egg mixture over the mushrooms and leeks. Spread evenly again and sprinkle on a little more chopped fresh parsley if desired.
- Bake for about 25 to 30 minutes or until cooked through and the quiche is a nice golden brown. Let cool for at least 15 to 20 minutes before serving.
Adapted from Aran Goyoaga’s Shiitake Mushroom and Leek (Gluten-Free) Quiche from 
Today, it’s all about … Breakfast for Dinner! Conni from The Foodie Army Wife is hosting!! Make sure you read through and visit the entire list. . I know it’s a long one. . but they are all fabulous and hey, we’re talking Breakfast for Dinner!
Tres Leches Pancakes from La Cocina de Leslie
French Toast Casserole with Sautéed Apples from The Foodie Army Wife
Gluten Free Breakfast Pizza from Blueberries And Blessings
Basic Vegan Waffles from Killer Bunnies, Inc
Kale, Bacon, Brown Rice Crustless Quiche from Shockingly Delicious
Bacon Egg and Potato Breakfast Tacos from Cookin’ Mimi
Steak and Egg Tostadas from The Girl In The Little Red Kitchen
Breakfast Bowls from Jane’s Adventures in Dinner
Bacon and Egg Waffles from The Urban Mrs
Homemade Lox from Growing Up Gabel
Seattle Sandwiches (Lox, Shmear, & A Fried Egg) from Juanita’s Cocina
Bacon & Brie Potato Bread Strata with Roasted Pears from Eat, Move, Shine
Saucy Ham and Cheese Breakfast Sliders from Daily Dish Recipes
Greek Frittata from Casa de Crews
Elderberry Flower Pancakes from Hezzi-D’s Books and Cooks
Prosciutto, Gorgonzola and Rosemary Strata from That Skinny Chick Can Bake
Italian Turkey Meatballs (With a Secret) from What Smells So Good?
Bacon, Spinach and Tomato Breakfast Pizza from Runner’s Tales
Red Pepper and Egg Galette from Healthy. Delicious.
Waffles – One Plate, Two Ways: Sweet & Savory from Foxes Love Lemons
Steak & Egg Bagel Sandwich from girlichef
Florentine Benedict from Supper for a Steal
Oatmeal Ice Cream from Treats & Trinkets
Banana Waffles with Peanut Butter Syrup from A Kitchen Hoor’s Adventures
Baked Berry French Toast from Table For Seven
But wait, there’s more!
Open Faced BTC Sandwich from Peanut Butter and Peppers
Crustless Spinach Quiche from The Hand That Rocks The Ladle
Bacon ‘n Eggs Bread Pudding from gotta get baked
Denver Breakfast Ring from Curious Cuisiniere
Copycat Japanese McDonald’s from Ninja Baking
One Pan Full English Fry-up from Food Lust People Love
Leek, Mushroom and Gruyère Quiche from Hip Foodie Mom
Joe’s Special, the Original San Francisco Treat from Webicurean
Dark Chocolate, Orange & Pistachio Greek Yogurt Cups from Cupcakes & Kale Chips
Gluten Free Tomato Basil Crepes form No One Likes Crumbley Cookies
Sour Cherry Crisp from Pies and Plots
Cream Dried Beef and Waffles from Cindy’s Recipes and Writings
Sausage breakfast casserole from My cute bride
Almond Rice Crepes Stuffed With Sweet Potatoes & Peas from Sue’s Nutrition Buzz
Zucchini Pancakes with Sautéed Tomatoes and Feta from Ruffles & Truffles
Apple, Bacon, and Dubliner Cheese Stuffed French Toast from Neighborfood
Dulce de Leche Stuffed French Toast from Basic N Delicious
Normally it would be very socially unacceptable to have wine with your breakfast, but seeing as this is closer to sunset than sunrise, we say go for it!!!
Hangtown Fry and Wine Pairings with Breakfast for Dinner from ENOFYLZ Wine Blog
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Quiche is good all day, year round. And this particular one has a very yummy mix of flavors Alice! I´m with you on the cream my friend, the reason why I don´t make it as much as I want, but when I do I sub half of it for yogurt, it works so well! Have a great day!
You are not alone – I love the smell of leeks too, AND I love egg dishes any time of day – which is funny because I HATED eggs as a kid!
What a gorgeous quiche! And I’m with you on leeks. I adore them and put them in everything from soups, rice dishes, and quiche! 🙂
I just adore all of the flavors in this quiche! Especially the gruyere!
Thank you, Jen! Loved your post!
Came across this recipe recently. It is one of our favorites now the flavor is wonderful. Your crust recipe is my go to one for everything now as well. Thank you
Hats off to you Alice for your healthy choice of cutting down the cream. Biting into the Gruyêre accented cheese I imagine will bring a smile to anyone’s SundaySupper. Or any other day of the week!
P.s. Have you tried raw egg on top of white rice and a drizzle of soy sauce? The best !
Wow! Great looking quiche…it reminds me that I need to eat quiche more often!
My mom is a leek lover, shed adore this
Oh, your quiche looks terrific, Alice! LOVE all those mushrooms!!!
I can never get sick of eating eggs, so this dish will definitely be a favourite if I can have it for dinner! Yum!
Jasline, I hope you are able to give this a try. . the mushrooms and leeks make this quiche! 🙂 oh and the gruyere! 😛
This sounds amazing! Love the idea of making pie crust in the food processor. Thankful to have found you through #FreshBloggers!
I am a huge fan of quiche of any kind. Your combination of leeks and mushrooms and Gruyere sounds wonderful, Alice. I am sure the cheese makes it rich enough, even without some of the cream.
I think this is one of the prettiest quiches I’ve ever seen. It’s a beauty queen! And I’m with you – why are some recipes like half heavy cream? You definitely DON’T need that much. I like it more eggy 🙂
I made something very similar for mothers day. Any time someone says Gruyère I’m in!
I’m impressed that you make your own crust. I should probably try it at some point. I made crust ONCE about 15 years ago!
I love the leeks and mushroom combo! Beautiful, Alice, beautiful!
Thank you so much, Amy! Re: the crust, it’s really not hard at all. . so easy! and I think it tastes much better! you could even make the crust the day before and just store it in the fridge.
You ‘n me are two peas in a pod. I love eggs too, cooked all ways, and on top of everything. And can I get a hells yeah to pastry? If I didn’t care about an early death by heart failure, I’d just bake pie crusts and phyllo and tart shells and eat them as is. I’ve been salivating over your quiche ever since seeing your photos on FB this weekend. This is such a fabulous combination of flavours and I love that you lighten your filling. You hit it out of the park with this one, lady.
I love ALL eggs and could eat them all the time. This looks delicious! I love that you made your own crust and cut out some of the cream!
Oh yes!! Pastry crust all the way baby! Sometimes in restaurants I order a dish just because it has pastry. #Noshame
I am SO with you – I always cut down on the cream/milk in quiche…I try to keep it light! I think it works out really well with a smaller amount! That, or I sub fat free half and half for the cream sometimes as an alternative.
Your photos are absolutely gorgeous, by the way!
Alice!! I’m totally making this this weekend. The wifey would love it!
I could gobble that whole thing up girlie!