Mushroom and Spinach Quiche (Vegetarian)

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Your whole family will love this easy spinach quiche recipe. It’s great any time, but we especially love it for holiday brunches.

sliced spinach quiche on a plate

Spinach quiche has been a holiday morning breakfast staple for as long as I can remember.

It’s easy to make ahead of time, so you don’t need to spend a ton of extra time in the kitchen. It’s easy to swap ingredients in and out based on what you and your family like, what you have in the fridge, or what you can afford. And – best of all – everyone loves it! 

Growing up, my mom always made her version of Quiche Lorraine, with bacon, spinach, and cheddar cheese. I loved how flavorful it was! These days I like to put my own spin on this, like I did with this vegetarian quiche recipe filled with spinach, mushrooms, and Swiss cheese. 

If you’re in the mood for something different, you can also check out my recipes for quiche provencal, which is chock full of vegetables and goat cheese, or my prosciutto and artichoke quiche, which has a more delicate flavor. 

ingredients to make mushroom and spinach quiche

What goes in spinach quiche?

At its most basic, quiche is a savory pie consisting of pastry crust filled with a rich egg custard. What you add into that custard is what makes your quiche extra special. 

For this recipe, I used:

  • Spinach. Frozen spinach actually works best for quiche. Thaw it and drain away as much water as you can. If you want to use fresh spinach, saute it before adding it to your recipe. 
  • Mushrooms. I love the earthy flavor of cremini mushrooms, but white mushrooms are great, too. You can also get fancy with a wild mushroom medley. 
  • Onion or Shallot. Onion and shallot are both delicious in quiche, so use whichever you prefer. Give it a quick saute in some olive oil to soften it up and take away it’s harsh bite. 
  • Cheese. There really is no one cheese that’s the best for quiche, so I mix it up depending on my mood. I love the sharpness of Swiss cheese combined with a little parmesan, so that’s what I used this time around. But any crumbled or shredded cheese will do. Cheddar and mozzarella are really popular options as well!
  • Garlic, Salt and Pepper. What recipe is complete without them? 

You’ll also need a crust for the filling to go in. Sometimes I make my own crust and other times I buy a premade one – it really depends on how ambitious I’m feeling and how much energy I want to put into cooking. If you have the time, homemade crust is definitely much more delicious. 

Don’t be intimidated by the thought of making your own crust! While it does take a little extra time, it isn’t difficult. This recipe for easy pie dough is great for beginners. If you don’t have butter, you can also make a delicious olive oil pie crust

What is quiche served with? 

Quiche is delicious any time of day, so what you have with it will largely depend on what meal you’re serving it for. For breakfast, I find that it’s usually enough on it’s own with a cup of coffee or a mimosa. 

For lunch or dinner, I love serving quiche with something acidic to cut through its richness. It’s perfect with a simple green salad topped with vinaigrette or with tomatoes tossed in balsamic vinegar. You could also serve it with a green vegetable – asparagus is great!

Can you freeze quiche?

Yes! Quiche actually freezes really well. Be sure to let it cool completely, then wrap it tightly in plastic wrap. If you wrap it while it’s still warm, it could trap condensation inside, leading to freezer burn. 

Defrost the frozen quiche in the fridge overnight, then pop it in the oven or the microwave to rewarm it. Quiche is also delicious served cold!

overhead view of quiche
landscape image of quiche

Mushroom + Spinach Quiche

Your whole family will love this easy spinach quiche recipe. It's great any time, but we especially love it for holiday brunches.
4.34 from 3 votes
Print Pin Rate
Course: Healthy Breakfast Recipes
Cuisine: American
Keyword: spinach quiche
Prep Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes
Servings: 8 servings
Calories: 273kcal

Ingredients

  • 1 pie crust
  • 2 Tablespoons olive oil
  • 8 ounces sliced mushrooms
  • 1 small onion finely chopped
  • 2 garlic cloves minced
  • 10 ounces frozen spinach thawed and drained
  • 4 large eggs
  • ½ cup whole milk
  • ½ cup heavy cream
  • ½ cup shredded Swiss cheese

Instructions

  • Heat you oven to 400F.
  • Arrange the pie dough into a 9-inch pie plate.
  • Heat the oil in a skillet set over medium high heat. Add the mushrooms, onion, and garlic, and cook until softened, about 5 minutes. Set aside and let cool slightly.
  • In a bowl, whisk together the eggs, milk, and cream. Season with salt and pepper. Stir the cooked vegetables and spinach into the egg mixture.
  • Pour the eggs in to the crust.
  • Bake for 15 minutes. Then reduce the heat to 350 and bake an additional 30-40 minutes, or until the center of the quiche is set.
  • If the quiche begins to brown too quickly, cover it with foil.
  • Let the quiche cool for at least 15 minutes before serving.
Nutrition Facts
Mushroom + Spinach Quiche
Amount Per Serving (1 slice)
Calories 273 Calories from Fat 171
% Daily Value*
Fat 19g29%
Saturated Fat 8g50%
Polyunsaturated Fat 10g
Cholesterol 118mg39%
Sodium 176mg8%
Carbohydrates 17g6%
Fiber 3g13%
Sugar 3g3%
Protein 9g18%
* Percent Daily Values are based on a 2000 calorie diet.
Tried this recipe?Mention @HealthyDelish or tag #HealthyDelish!
lauren

Hi, I'm Lauren!

I'm a certified plant-based cook and enthusiastic omnivore who loves looking for creative ways to make weeknight meals more nutritious. I'm the author of Heathy Eating One Pot Cookbook and Healthy Meal Prep Slow Cooker Cookbook. I also blog at The Busy Foodie. Read more...

 

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10 thoughts on “Mushroom and Spinach Quiche (Vegetarian)”

  1. Just like Sara asked, where , how and when do you add the cheese? Kind of a major ingredient, and it’s completely left out of the instructions

    Reply
  2. 3 stars
    The recipe never mentions when to add the cheese. If you have a glass pie plate, I recommend reducing the temperture by 25 degrees at each step .This is a good recipe. I added a bit more cheese (personal preference). I used canned mushrooms as I had all of the ingredients on hand, without making a trip to the store.

    Reply
  3. 5 stars
    Nice balance of flavors in this quiche. Only thing I did was prebake the crust. The pie was good without all the cheese seen in other recipes. Will make again!

    Reply
  4. Hi! Why is frozen spinach better than fresh? Should I blanch my spinach prior to freezing/then thaw it and use it in the quiche? Or should I freeze raw spinach?
    Kindest

    Reply
    • Frozen chopped spinach is easier, without sacrificing any nutrition . Don’t cook/freeze thaw fresh spinach for this. Just cook some fresh spinach you’ve chopped.

    • I actually don’t care for fresh spinach in this recipe, although I do in almost all others. It doesn’t have the same texture here that frozen doesn’t.

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