Caramelized Onion & Mushroom Quiche


Onions and mushrooms are classic quiche ingredients. To make the most of these vegetables and build big flavor fast, sauté sliced red onion and cremini mushrooms until golden brown (about 10 minutes) before adding them to the pie crust.

Active Time:
15 mins
Total Time:
1 hrs 10 mins
Nutrition Profile:


  • 1 (9 inch) frozen prepared pie crust

  • 1 tablespoon extra-virgin olive oil

  • ½ large red onion, sliced

  • 8 ounces cremini mushrooms, sliced

  • ½ teaspoon salt, divided

  • 4 large eggs

  • 1 ¼ cups whole milk

  • teaspoon ground pepper


  1. Preheat oven to 375°F. Set out pie crust to thaw for 10 to 20 minutes.

  2. Meanwhile, heat oil in a large nonstick skillet over medium heat. Add onion and cook, stirring occasionally until beginning to soften, about 5 minutes. Add mushrooms and cook, stirring, until the onions are golden brown and the mushrooms reduce by half, about 5 minutes. Season with 1/4 teaspoon salt and set aside to cool slightly. Transfer the vegetable mixture to the crust.

  3. Whisk eggs, milk, pepper and the remaining 1/4 teaspoon salt in a medium bowl. Pour over the vegetables.

  4. Set the quiche on a baking sheet and bake until the center is set, 35 to 40 minutes. Let stand for 10 minutes before slicing.

    Photo by: Carolyn A. Hodges, R.D.

Nutrition Facts (per serving)

242 Calories
15g Fat
20g Carbs
9g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 242
% Daily Value *
Total Carbohydrate 20g 7%
Dietary Fiber 1g 4%
Total Sugars 5g
Protein 9g 18%
Total Fat 15g 19%
Saturated Fat 5g 25%
Cholesterol 129mg 43%
Vitamin A 263IU 5%
Sodium 386mg 17%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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