Crustless Spinach, Mushroom & Feta Quiche
Crustless Spinach, Mushroom & Feta Quiche is a wholesome, protein-packed dish that delivers all the flavor of a traditional quiche without the added crust. Tender sautéed mushrooms, nutritious spinach, creamy feta cheese, and a rich egg custard come together to create a light yet satisfying meal. Perfect for breakfast, brunch, lunch, or even a simple dinner, this easy quiche is naturally lower in carbohydrates and ideal for meal prep. Its fluffy texture and savory flavor make it a favorite for busy weekdays and special gatherings alike.
Prep Time: 15 minutes
Cook Time: 40 minutes
Total Time: 55 minutes
Servings: 6
Ingredients
Vegetable Filling
8 oz cremini or button mushrooms, thinly sliced
5 oz fresh baby spinach, chopped (or 10 oz frozen spinach, thawed and squeezed dry)
1 small onion or shallot, diced
2 cloves garlic, minced
1 tbsp olive oil or butter
Egg Custard Base
6 large eggs
½ cup heavy cream or whole milk
1 tbsp all-purpose flour (optional)
Cheeses & Seasonings
½ cup crumbled feta cheese
½ cup shredded mozzarella or Swiss cheese
¼ cup grated Parmesan cheese
¼ tsp salt
¼ tsp black pepper
½ tsp dried oregano or a pinch of ground nutmeg (optional)
Instructions
How to Make Crustless Quiche
Preheat the oven to 375°F (190°C). Lightly grease a 9-inch pie dish or baking dish.
Heat olive oil or butter in a large skillet over medium heat. Add the diced onion and cook until softened, about 3 to 4 minutes.
Stir in the garlic and sliced mushrooms. Cook for 5 to 7 minutes until the mushrooms release their moisture and become lightly golden.
Add the spinach and cook until wilted. If using frozen spinach, stir it in and cook for 2 minutes to remove any remaining moisture. Remove from heat and let cool slightly.
In a large mixing bowl, whisk together the eggs, cream or milk, flour (if using), salt, pepper, and oregano until smooth.
Fold in the feta cheese, mozzarella or Swiss cheese, Parmesan cheese, and the cooked vegetable mixture.
Pour the mixture into the prepared baking dish and spread evenly.
Bake for 35 to 40 minutes or until the center is set and the top is lightly golden.
Allow the quiche to cool for 10 minutes before slicing and serving.
Serve warm or at room temperature with a fresh salad or roasted vegetables.
Tips
Sauté mushrooms thoroughly to remove excess moisture and prevent a watery quiche.
If using frozen spinach, squeeze out as much liquid as possible before adding it to the mixture.
Allow the cooked vegetables to cool slightly before combining them with the eggs.
Use full-fat feta cheese for the richest flavor and creamiest texture.
Do not overbake, as the eggs can become rubbery.
A touch of Parmesan enhances the savory flavor and creates a beautiful golden top.
For a fluffier texture, whisk the eggs until completely smooth and slightly frothy.
Let the quiche rest before slicing so it sets properly.
Use freshly grated cheese whenever possible for better melting and flavor.
Store leftovers in an airtight container and reheat gently to maintain texture.
Variations
Add cooked bacon or turkey bacon for a smoky flavor.
Mix in diced roasted red peppers for sweetness and color.
Use goat cheese instead of feta for a tangier taste.
Replace spinach with kale, Swiss chard, or arugula.
Add chopped broccoli florets for extra nutrition.
Use Gruyère cheese in place of Swiss cheese for a richer flavor profile.
Include sun-dried tomatoes for a Mediterranean-inspired twist.
Add fresh herbs such as dill, parsley, or basil for extra freshness.
Make mini quiches in a muffin tin for meal prep or entertaining.
Add diced zucchini or asparagus for a seasonal vegetable variation.
Frequently Asked Questions
Can I make this quiche ahead of time?
Yes. It can be prepared a day in advance and stored in the refrigerator until ready to serve.
Can I freeze crustless quiche?
Yes. Allow it to cool completely, wrap tightly, and freeze for up to three months.
Why is my quiche watery?
Excess moisture from spinach or mushrooms is usually the cause. Be sure to cook and drain vegetables properly.
Can I use milk instead of cream?
Absolutely. Whole milk creates a lighter texture while still providing good flavor.
Is the flour necessary?
No. The flour helps the quiche set more firmly, but it can be omitted.
How do I know when the quiche is done?
The center should be set with only a slight jiggle when gently shaken.
Can I use different cheeses?
Yes. Cheddar, Gruyère, Monterey Jack, or provolone all work well.
How long will leftovers last?
Properly stored leftovers can last up to four days in the refrigerator.
Can I serve it cold?
Yes. Crustless quiche tastes delicious warm, room temperature, or chilled.
What side dishes pair well with this quiche?
Fresh fruit, mixed greens, roasted potatoes, or a light soup complement it perfectly.
Nutrition
Per Serving (Approximate)
Calories: 245
Protein: 16 g
Carbohydrates: 5 g
Fat: 18 g
Saturated Fat: 8 g
Fiber: 1 g
Sugar: 2 g
Calcium: 220 mg
Sodium: 410 mg
Nutritional values may vary depending on ingredient brands and portion sizes.
Conclusion
Crustless Spinach, Mushroom & Feta Quiche is an easy, nutritious, and flavorful dish that fits seamlessly into any meal plan. Packed with protein-rich eggs, savory vegetables, and creamy cheeses, it offers a satisfying balance of texture and taste without the need for a pastry crust. Whether you’re preparing a weekend brunch, a healthy lunch, or a make-ahead breakfast, this versatile quiche is sure to become a favorite recipe you’ll enjoy throughout the year.