Easy Cheddar Spinach and Mushroom Pie with Puff Pastry Crust

Savor the comforting flavors of this Easy Cheddar Spinach and Mushroom Pie with Puff Pastry Crust, a show-stopping dish that’s as simple to make as it is satisfying to eat. Featuring a golden, flaky puff pastry base, this recipe combines sautéed mushrooms, tender baby spinach, and caramelized onions with gooey cheddar cheese in a rich, custard-like egg filling. A pinch of optional nutmeg and black pepper elevates the flavors, while the quick preparation and 35-minute bake time make this an ideal choice for weeknight dinners or casual brunches. Whether served warm as a main course or cooled for easy slicing at events, this savory pie delivers gourmet appeal with minimal effort—perfect for home cooks looking to turn pantry staples into a mouthwatering masterpiece.

Nutriscore Rating: 61/100

Prep Time:20 mins

Cook Time:35 mins

Total Time:55 mins

Servings: 6

Ingredients

• 1 sheet puff pastry sheet
• 2 tablespoons olive oil
• 1 medium yellow onion, finely chopped
• 2 cloves garlic cloves, minced
• 250 grams button mushrooms, sliced
• 4 cups baby spinach leaves
• 1 cup cheddar cheese, shredded
• 3 eggs
• 1 cup milk
• 1 teaspoon salt
• 0.5 teaspoon black pepper
• 0.25 teaspoon nutmeg (optional)
• 0.25 cup all-purpose flour, for dusting

Directions

Step 1

Preheat the oven to 375°F (190°C).

Step 2

Lightly flour a clean surface and roll out the puff pastry sheet to fit a 9-inch pie dish. Press the pastry evenly into the pie dish, trimming any excess, and set aside.

Step 3

In a large skillet, heat the olive oil over medium heat.

Step 4

Add the chopped onion and cook for 3-4 minutes until softened and translucent.

Step 5

Stir in the minced garlic and cook for another 30 seconds until fragrant.

Step 6

Add the sliced mushrooms and sauté for 5-6 minutes until golden and the moisture has evaporated.

Step 7

Gradually add the baby spinach, stirring constantly, and cook until wilted. Remove from heat and let cool slightly.

Step 8

In a mixing bowl, whisk together the eggs, milk, salt, black pepper, and nutmeg (if using).

Step 9

Spread the mushroom and spinach mixture evenly over the bottom of the prepared puff pastry.

Step 10

Sprinkle the shredded cheddar cheese over the vegetables.

Step 11

Pour the egg mixture over the cheese and vegetables, allowing it to fill in all gaps.

Step 12

Bake in the preheated oven for 30-35 minutes, or until the filling is set and the puff pastry is golden brown.

Step 13

Remove from the oven and let the pie cool for 10 minutes before slicing and serving. Enjoy!

Nutrition Facts

Serving size	(1294.0g)

Amount per serving	% Daily Value*
Calories	2795.0

Total Fat 187.7g	0%
Saturated Fat 61.9g	0%
Polyunsaturated Fat 2.8g
Cholesterol 700.0mg	0%
Sodium 4686.4mg	0%
Total Carbohydrate 190.6g	0%
Dietary Fiber 14.5g	0%
Total Sugars 27.0g
Protein 89.2g	0%

Vitamin D 279.4IU	0%
Calcium 1352.7mg	0%
Iron 15.0mg	0%
Potassium 2451.0mg	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: 60.1%

Protein: 12.7%

Carbs: 27.1%