This healthy vegetarian quiche recipe is as simple as it gets. It's a quiche without the fussy crust! It's filled with sweet wild mushrooms and savory Gruyère cheese. Enjoy it for breakfast or brunch, or serve it with a light salad for lunch.

Julia Levy
Source:, January 2020


Read the full recipe after the video.

Recipe Summary

25 mins
1 hr 5 mins


Ingredient Checklist


Instructions Checklist
  • Preheat oven to 375 degrees F. Coat a 9-inch pie pan with cooking spray; set aside.

  • Heat oil in a large nonstick skillet over medium-high heat; swirl to coat the pan. Add mushrooms; cook, stirring occasionally, until browned and tender, about 8 minutes. Add onion and garlic; cook, stirring often, until softened and tender, about 5 minutes. Add spinach; cook, tossing constantly, until wilted, 1 to 2 minutes. Remove from heat.

  • Whisk eggs, milk, half-and-half, mustard, thyme, salt and pepper in a medium bowl. Fold in the mushroom mixture and cheese. Spoon into the prepared pie pan. Bake until set and golden brown, about 30 minutes. Let stand for 10 minutes; slice. Garnish with thyme and serve.

Nutrition Facts

277 calories; protein 17.1g; carbohydrates 6.8g; dietary fiber 1.5g; sugars 3.2g; fat 20g; saturated fat 8.2g; cholesterol 220.2mg; vitamin a iu 2126.7IU; vitamin c 10.8mg; folate 39.1mcg; calcium 357.8mg; iron 2mg; magnesium 41.8mg; potassium 289.1mg; sodium 442.5mg; thiamin 0.1mg.

Reviews (7)

Read More Reviews
8 Ratings
  • 5 star values: 7
  • 4 star values: 0
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 1
Rating: 5 stars
This was soooo good! I used baby portobello mushrooms and cooked until tiny. Very delicious. Read More
Rating: 1 stars
I really wanted to like this recipe... I tried. I remained positive but my husband said... Hmmm it's rubbery. Indeed it was. It was beautiful smelled delicious but the texture was very unappetizing. I followed the directions exactly. We each had a slice and then tossed the remainder. Read More
Rating: 5 stars
Was delicious. When combining mushrooms and spinach mixture to eggs and milk I added 1 1/2 T capers or to taste. Read More
Rating: 5 stars
Made this quiche for breakfast today. Went together so easily. My husband and I loved it. Will definitely be making again.. Read More
Rating: 5 stars
The combination of wild mushrooms and gruyere cheese really elevates the flavor of this quiche. Read More
Rating: 5 stars
This is a spectacular recipe. I made it according to the recipe and it was gorgeous. I told my husband that this was going to become a staple in our household! The recipe is even more delightful given its healthful ingredients and low calorie count. Read More
Rating: 5 stars
Made it as directed and it was outstanding! The best crustless quiche hands down! Read More