Onion Bacon Mushroom Quiche

Indulge in the savory elegance of this Onion Bacon Mushroom Quiche, a perfect marriage of rich flavors and creamy textures. A buttery pie crust cradles a luscious filling of crispy bacon, caramelized onions, and sautéed mushrooms, all enveloped in a velvety custard made with eggs, heavy cream, and a hint of nutmeg. Enhanced by the nutty richness of Gruyere or Swiss cheese, this quiche is as satisfying as it is versatile—ideal for brunch gatherings, light lunches, or even a sophisticated dinner. With minimal prep and a bake time of only 45 minutes, this quiche recipe combines gourmet appeal with effortless preparation. Serve it warm or at room temperature for a dish that’s guaranteed to impress!

Nutriscore Rating: 56/100

Prep Time:25 mins

Cook Time:45 mins

Total Time:70 mins

Servings: 6

Ingredients

• 1 piece Pie crust (store-bought or homemade)
• 6 slices Bacon, diced
• 1 tablespoon Unsalted butter
• 1 large Yellow onion, thinly sliced
• 1.5 cups Mushrooms, sliced
• 4 large Eggs
• 1 cup Heavy cream
• 0.5 cup Whole milk
• 1 cup Shredded Gruyere or Swiss cheese
• 0.5 teaspoon Salt
• 0.25 teaspoon Ground black pepper
• 0.125 teaspoon Ground nutmeg (optional)

Directions

Step 1

Preheat the oven to 375°F (190°C). Roll the pie crust into a 9-inch pie dish, trim any excess dough, and crimp the edges. Refrigerate the crust while preparing the filling.

Step 2

In a skillet over medium heat, cook the diced bacon until crispy. Remove with a slotted spoon and place on a plate lined with paper towels.

Step 3

Discard most of the bacon grease, leaving about 1 tablespoon in the skillet. Add the butter to the skillet and melt over medium heat.

Step 4

Add the sliced onion to the skillet. Cook, stirring occasionally, for about 10-12 minutes until caramelized and golden brown.

Step 5

Stir the sliced mushrooms into the skillet and cook for an additional 5-7 minutes, until softened and lightly browned. Remove from heat and let cool slightly.

Step 6

In a medium mixing bowl, whisk together the eggs, heavy cream, and milk until smooth. Stir in the shredded cheese, salt, pepper, and nutmeg (if using).

Step 7

Spread the caramelized onion and mushroom mixture evenly over the chilled pie crust. Sprinkle the cooked bacon on top.

Step 8

Pour the egg mixture over the filling, ensuring it is evenly distributed.

Step 9

Place the quiche on the center rack of the preheated oven. Bake for 40-45 minutes, or until the custard is set and the top is lightly golden.

Step 10

Remove from the oven and allow the quiche to cool for 10 minutes before slicing. Serve warm or at room temperature.

Nutrition Facts

Serving size	1245.9 grams (1245.9g)

Amount per serving	% Daily Value*
Calories	3328

Total Fat 239.90g	308%
Saturated Fat 103.30g	517%
Polyunsaturated Fat NaNg
Cholesterol 1203mg	401%
Sodium 4257mg	185%
Total Carbohydrate 167.80g	61%
Dietary Fiber 10.80g	39%
Total Sugars 14.20g
Protein 112.90g	226%

Vitamin D 209IU	1045%
Calcium 1189mg	91%
Iron 11mg	59%
Potassium 1881mg	40%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 65.8%

Protein: 13.8%

Carbs: 20.5%