Vegetarian Classic Quiche Lorraine

Indulge in the rich, savory flavors of this Vegetarian Classic Quiche Lorraine—a modern twist on a timeless French dish. Featuring a golden, flaky pre-made pie crust filled with a luscious custard of eggs, heavy cream, and milk, this quiche is elevated with the nutty complexity of grated Gruyère cheese. The filling is studded with sautéed onions, garlic, earthy mushrooms, and vibrant spinach, creating a perfectly balanced vegetarian centerpiece. A touch of freshly grated nutmeg adds warmth and depth, while the golden-baked top gives a satisfying finish. Ready in just over an hour, this easy yet elegant recipe is perfect for brunch, lunch, or a light dinner. Serve warm with a crisp side salad or chilled for a make-ahead meal everyone will love.

Nutriscore Rating: 59/100

Prep Time:20 mins

Cook Time:50 mins

Total Time:70 mins

Servings: 6

Ingredients

• 1 piece pre-made pie crust
• 1 tablespoon olive oil
• 1 medium onion, finely chopped
• 2 cloves garlic, minced
• 1 cup frozen chopped spinach, thawed and drained
• 1 cup button mushrooms, sliced
• 4 large eggs
• 1 cup heavy cream
• 0.5 cup milk
• 1 cup grated Gruyère cheese
• 0.5 teaspoon salt
• 0.25 teaspoon black pepper, freshly ground
• 0.25 teaspoon nutmeg, grated

Directions

Step 1

Preheat your oven to 375°F (190°C).

Step 2

Place the pre-made pie crust into a 9-inch pie plate, pressing it firmly into the plate, and trim any excess edges.

Step 3

In a skillet over medium heat, add the olive oil. Once hot, sauté the onion for 3-4 minutes until it becomes translucent.

Step 4

Add the minced garlic and cook for an additional minute.

Step 5

Add the mushrooms and cook until they are tender and most of their moisture has evaporated, about 5 minutes.

Step 6

Stir in the thawed and drained spinach, cooking for an additional 2 minutes. Remove from heat and set aside.

Step 7

In a large mixing bowl, whisk together the eggs, heavy cream, and milk until well combined.

Step 8

Stir in the Gruyère cheese, salt, black pepper, and nutmeg into the egg mixture.

Step 9

Add the sautéed vegetable mixture to the pie crust, spreading it evenly.

Step 10

Pour the egg and cheese mixture over the vegetables in the pie crust.

Step 11

Place the quiche in the preheated oven and bake for 40-50 minutes, or until the center is set and the top is golden brown.

Step 12

Remove the quiche from the oven and let it cool for a few minutes before slicing and serving.

Nutrition Facts

Serving size	(1433.8g)

Amount per serving	% Daily Value*
Calories	3091.8

Total Fat 223.1g	0%
Saturated Fat 100.1g	0%
Polyunsaturated Fat 1.4g
Cholesterol 1115.0mg	0%
Sodium 3471.8mg	0%
Total Carbohydrate 168.3g	0%
Dietary Fiber 15.1g	0%
Total Sugars 17.7g
Protein 87.6g	0%

Vitamin D 255.7IU	0%
Calcium 1651.5mg	0%
Iron 13.9mg	0%
Potassium 2458.5mg	0%

*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: 66.2%

Protein: 11.6%

Carbs: 22.2%