Spinach Mushroom Quiche

This Spinach Mushroom Quiche is a nourishing, crustless dish that combines the earthiness of mushrooms with the freshness of spinach and the richness of two cheeses. Perfect for a protein-packed breakfast, a brunch centerpiece, or a light yet satisfying lunch, this quiche delivers comfort and flavor without the need for a crust.

Why You’ll Love This Recipe

With its simple preparation, wholesome ingredients, and balanced nutritional profile, this quiche is an excellent option for meal prep or busy mornings. The combination of sautéed vegetables and creamy cheeses baked into a fluffy egg base offers both richness and lightness in every bite. It’s gluten-free, low in carbs, and endlessly adaptable for various dietary preferences.

Ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

  • olive oil
  • onion, diced
  • sliced mushrooms
  • fresh spinach, chopped
  • large eggs
  • milk (dairy or unsweetened plant-based)
  • shredded mozzarella cheese
  • crumbled feta or goat cheese
  • garlic powder
  • salt and pepper

Directions

  1. Preheat oven to 375°F (190°C). Grease a 9-inch pie dish with non-stick spray or olive oil.
  2. Heat olive oil in a skillet over medium heat. Sauté diced onions and mushrooms until soft and lightly browned, about 5–6 minutes.
  3. Add chopped spinach to the skillet and cook until just wilted, about 1 minute. Remove from heat and let cool slightly.
  4. In a large mixing bowl, whisk together eggs, milk, garlic powder, salt, and pepper.
  5. Stir in shredded mozzarella and the cooled sautéed vegetables.
  6. Pour the mixture into the prepared pie dish and top with crumbled feta or goat cheese.
  7. Bake for 35–40 minutes, or until the center is set and the top is golden.
  8. Let the quiche rest for 5 minutes before slicing and serving.

Servings and timing

Prep Time: 15 minutes
Cooking Time: 40 minutes
Total Time: 55 minutes
Servings: 6 slices
Calories: 210 kcal per slice

Variations

  • Substitute kale or Swiss chard for spinach for a different leafy green.
  • Use Swiss or cheddar cheese in place of mozzarella for a different flavor profile.
  • Add chopped sun-dried tomatoes or roasted red peppers for extra color and taste.
  • Include cooked sausage or bacon for a non-vegetarian version.

storage/reheating

Store leftover quiche in an airtight container in the refrigerator for up to 4 days. To reheat, warm slices in the oven at 325°F (165°C) for about 10–12 minutes, or microwave individual portions for 30–60 seconds. This quiche also freezes well—wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.

FAQs

Can I make this quiche ahead of time?

Yes, it can be prepared and baked a day in advance. Store it in the refrigerator and reheat before serving.

Can I freeze this quiche?

Absolutely. Cool it completely, wrap tightly, and freeze for up to 2 months.

Is this quiche suitable for a gluten-free diet?

Yes, it’s naturally gluten-free since it’s crustless and contains no flour.

Can I use frozen spinach?

Yes, thaw and squeeze out all excess moisture before adding it to the sautéed vegetables.

What’s the best milk to use?

Any milk works—whole milk for creaminess, or unsweetened almond or oat milk for a dairy-free option.

How do I know when the quiche is done?

The center should be set and not jiggle when moved. A knife inserted in the center should come out clean.

Can I make this quiche dairy-free?

Yes, use plant-based milk and dairy-free cheeses to suit your dietary needs.

How do I prevent a watery quiche?

Sauté vegetables thoroughly to remove excess moisture before mixing with the eggs.

Can I use a crust if I prefer?

Yes, pour the filling into a pre-baked 9-inch pie crust and adjust baking time as needed.

Can I double the recipe?

Yes, use a larger baking dish and increase baking time slightly, checking for doneness in the center.

Conclusion

The Spinach Mushroom Quiche is a wholesome, flavorful dish that fits seamlessly into any meal of the day. It’s simple to prepare, easy to customize, and packed with nutritious ingredients. Whether you’re planning a brunch or looking for a quick meal prep solution, this crustless quiche offers the perfect balance of health and indulgence.

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Spinach Mushroom Quiche

Spinach Mushroom Quiche

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  • Author: Elina
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Total Time: 55 minutes
  • Yield: 6 slices 1x
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

A wholesome crustless quiche loaded with sautéed mushrooms, spinach, and creamy cheese—perfect for a protein-rich breakfast, brunch, or light lunch.


Ingredients

Units Scale
  • 1 tbsp olive oil
  • 1/2 small onion, diced
  • 1 cup sliced mushrooms
  • 2 cups fresh spinach, chopped
  • 5 large eggs
  • 1/2 cup milk (dairy or unsweetened plant-based)
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup crumbled feta or goat cheese
  • 1/2 tsp garlic powder
  • Salt and pepper to taste

Instructions

  1. Preheat oven to 375°F (190°C). Grease a 9-inch pie dish.
  2. Heat olive oil in a skillet over medium heat. Add onions and mushrooms, and sauté until soft and lightly browned, about 5–6 minutes.
  3. Add spinach and cook until wilted, about 1 minute. Remove from heat and let cool slightly.
  4. In a mixing bowl, whisk together eggs, milk, garlic powder, salt, and pepper.
  5. Stir in mozzarella and sautéed vegetables.
  6. Pour mixture into prepared pie dish and sprinkle with crumbled feta.
  7. Bake for 35–40 minutes, or until the center is set and the top is golden.
  8. Let rest 5 minutes before slicing and serving.

Notes

  • Great for meal prep—store leftovers in the fridge for up to 4 days.
  • Use a nonstick pie dish or line with parchment for easier cleanup.
  • Customize with other vegetables or cheese blends as desired.

Nutrition

  • Serving Size: 1 slice
  • Calories: 210
  • Sugar: 2g
  • Sodium: 280mg
  • Fat: 15g
  • Saturated Fat: 6g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 4g
  • Fiber: 1g
  • Protein: 13g
  • Cholesterol: 195mg

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