Mushroom and Spinach Quiche With Potato Crust

The first time I tasted a quiche, I was a very picky child, convinced all vegetables were the enemy. My grandmother, a culinary wizard with a twinkle in her eye, presented me with a slice of golden-brown deliciousness. Hesitantly, I took a bite, and the creamy filling, earthy mushrooms, and slightly sweet onions melted in my mouth. It was a revelation! She’d snuck in spinach, disguised by the rich flavors and comforting texture. It wasn’t just a quiche; it was a gateway to a world of flavors I’d been stubbornly avoiding. To this day, quiche is a reminder that even the most reluctant palates can be won over with a little creativity and a lot of love.

Recipe Overview

• Prep Time: 25 minutes
• Cook Time: 40 minutes
• Total Time: 1 hour 5 minutes
• Servings: 8
• Yield: 1 pie
• Dietary Type: Vegetarian

Ingredients

For the Crust:

• ½ lb Yukon gold potato, peeled and shredded
• 1 ¼ teaspoons olive oil
• ½ teaspoon salt
• ½ teaspoon pepper

For the Filling:

• 1 onion, diced
• 8 ounces white mushrooms, sliced
• 5 ounces baby spinach, bagged
• 1 ¾ teaspoons olive oil
• ¾ teaspoon salt
• ¾ teaspoon pepper
• 3 large eggs
• 1 cup skim milk
• 1 ounce gruyere cheese, shredded (about ¼ cup)

Equipment Needed

• 9-inch glass or ceramic pie dish
• Large skillet (preferably nonstick)
• Whisk
• Cheese grater or food processor

Instructions

1. Preheat your oven to 400 degrees Fahrenheit.
2. Lightly grease a 9-inch glass or ceramic pie dish with ¼ teaspoon olive oil.
3. In a bowl, toss the shredded potatoes with 1 teaspoon olive oil, ⅛ teaspoon salt, and ⅛ teaspoon pepper.
4. Press the potato mixture into an even layer in the pie dish, ensuring it covers the bottom and extends up the sides to form a crust.
5. Bake the potato crust until it is golden brown at the edges and feels dry to the touch. This should take about 20 minutes. Allow the crust to cool slightly after baking.
6. Reduce the oven temperature to 325 degrees Fahrenheit.
7. Heat 1 teaspoon olive oil in a large skillet, preferably nonstick, over medium heat.
8. Add the diced onion to the skillet and cook until softened and golden brown, approximately 5 minutes. Stir occasionally to prevent burning.
9. Add the remaining 1 teaspoon olive oil and the sliced mushrooms to the skillet. Cook, stirring frequently, until the mushrooms release their liquid and most of the liquid evaporates. This process should take around 8 minutes.
10. Add the baby spinach, remaining ¼ teaspoon salt, and remaining ¼ teaspoon pepper to the skillet. Cook, stirring, just until the spinach wilts. This will only take about 30 seconds.
11. Remove the skillet from the heat and allow the mushroom and spinach mixture to cool slightly.
12. In a separate bowl, whisk together the eggs, skim milk, remaining ⅛ teaspoon salt, and remaining ⅛ teaspoon pepper until well combined.
13. Spread the mushroom and spinach mixture in an even layer over the cooled potato crust in the pie dish.
14. Sprinkle the shredded Gruyere cheese evenly over the mushroom mixture.
15. Carefully pour the egg mixture over the cheese and mushroom filling, ensuring it distributes evenly.
16. Bake the quiche in the preheated oven until it is firm around the edges but still slightly wobbly in the center. This should take approximately 20 minutes.
17. Once baked, let the quiche cool slightly before serving. It can be served warm or at room temperature.

Expert Tips & Tricks

• For a crispier potato crust, ensure the potatoes are well-drained after shredding. You can even squeeze out excess moisture with a clean kitchen towel.
• To prevent the crust from burning during the initial bake, you can partially bake it with pie weights or dried beans. This will also help it maintain its shape.
• Don’t overcrowd the skillet when cooking the mushrooms. Overcrowding prevents them from browning properly. If necessary, cook the mushrooms in batches.
• If you don’t have Gruyere cheese, you can substitute it with Swiss cheese or Parmesan cheese.
• To check for doneness, gently shake the quiche. If the center jiggles significantly, it needs more time in the oven. A slight wobble is okay.
• If the crust starts to brown too quickly during the final baking stage, cover the edges with foil.

Serving & Storage Suggestions

This mushroom and spinach quiche is delicious served warm or at room temperature. It makes a fantastic brunch dish, light lunch, or even a simple dinner. Serve it with a side salad for a complete meal.

Leftovers can be stored in the refrigerator for up to 3 days. Ensure the quiche is completely cooled before covering it tightly with plastic wrap or placing it in an airtight container. To reheat, you can warm it in the oven at 300 degrees Fahrenheit until heated through, or microwave individual slices for a quick meal. Freezing is not recommended as the texture may change upon thawing.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	150 kcal	7%
Total Fat	7g	9%
Saturated Fat	3g	15%
Cholesterol	60mg	20%
Sodium	350mg	15%
Total Carbohydrate	12g	4%
Dietary Fiber	1g	4%
Sugars	3g
Protein	7g	14%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Crust Variation: For a gluten-free option, try using sweet potato instead of Yukon gold potato for the crust. You can also add a tablespoon of almond flour to the potato mixture for added structure.
• Cheese Options: Experiment with different types of cheese. Feta cheese adds a salty tang, while goat cheese provides a creamy and slightly tangy flavor.
• Vegetable Medley: Add other vegetables like bell peppers, zucchini, or asparagus to the filling for extra nutrients and flavor. Saute them along with the onions and mushrooms.
• Dairy-Free: Substitute the skim milk with unsweetened almond milk or soy milk for a dairy-free version. Consider using a dairy-free cheese alternative as well.
• Protein Boost: Add cooked and crumbled sausage, bacon, or diced ham to the filling for a heartier quiche.

FAQs (Frequently Asked Questions):

Q: Can I make the potato crust ahead of time?
A: Yes, you can bake the potato crust a day in advance and store it in the refrigerator. Just make sure to let it cool completely before storing.

Q: Can I use frozen spinach instead of fresh spinach?
A: Yes, but make sure to thaw the frozen spinach completely and squeeze out any excess water before adding it to the skillet.

Q: How do I prevent the potato crust from sticking to the pie dish?
A: Be sure to grease the pie dish thoroughly with olive oil before pressing in the potato mixture.

Q: Can I add herbs to the quiche?
A: Absolutely! Fresh herbs like thyme, rosemary, or parsley can add a wonderful depth of flavor to the filling. Add them to the skillet along with the spinach.

Q: Is it possible to make individual mini quiches using this recipe?
A: Yes, you can divide the potato mixture among muffin tins to create individual crusts. Adjust baking times accordingly.

Final Thoughts

So, there you have it – a comforting and flavorful Mushroom and Spinach Quiche with a clever potato crust that’s sure to impress. Don’t be afraid to get creative and adapt the recipe to your liking. Whether you’re serving it for a special occasion or a simple weeknight meal, this quiche is guaranteed to bring a smile to your face. I encourage you to give it a try and share your feedback. Pair it with a crisp green salad and a glass of chilled white wine for a delightful culinary experience. Happy cooking!