Quiches are a beloved dish that combine eggs, cheese, and a variety of fillings into a savory pie. They are versatile, easy to prepare, and perfect for any meal of the day – breakfast, brunch, lunch, or even dinner. For those looking for a lighter version, a crustless quiche is a great option that provides all the flavor without the extra carbs from the crust. This Mushroom and Swiss Crustless Quiche is a delightful combination of earthy mushrooms and creamy Swiss cheese, delivering a rich flavor profile in every bite. Whether you’re hosting a brunch or just cooking a weeknight dinner, this recipe will leave everyone asking for more.
In this article, we’ll take you through everything you need to know about making this delicious dish, including a detailed list of ingredients, step-by-step instructions, cooking tips, preparation time, nutritional benefits, and frequently asked questions. By the end of this comprehensive guide, you’ll be a crustless quiche expert!
Ingredients
To make this delectable Mushroom and Swiss Crustless Quiche, you’ll need the following ingredients:
- 2 cups mushrooms, sliced
- 1 cup Swiss cheese, shredded
- 6 large eggs
- 1/2 cup milk
- 1/2 teaspoon garlic powder
- Salt and pepper, to taste
Ingredient Notes
- Mushrooms: Use any variety of mushrooms that you enjoy. Cremini, button, or even shiitake mushrooms are all great choices. Their earthy flavor adds depth to the dish.
- Swiss Cheese: Swiss cheese offers a nutty and slightly sweet flavor that pairs well with mushrooms, but you can also substitute it with Gruyère or a mix of cheeses if you prefer.
- Milk: Any kind of milk works for this recipe. For a creamier texture, you can use whole milk or a blend of milk and cream.
- Seasoning: Garlic powder, salt, and pepper add a subtle kick to balance the creaminess of the quiche. Feel free to add your favorite herbs and spices to enhance the flavors.
Prep Time, Cooking Time, and Total Time
- Prep Time: 10 minutes
- Cooking Time: 30 minutes
- Total Time: 40 minutes
- Servings: 6
- Calories per Serving: Approximately 150 kcal

Directions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Greasing a pie dish ensures that the quiche doesn’t stick to the sides and can be easily removed once baked. You can use non-stick spray, butter, or oil to grease the dish.
Step 2: Prepare the Mushrooms
In a medium-sized skillet over medium heat, sauté the sliced mushrooms. Cook for about 5 minutes or until they are softened and have released their moisture. This step is crucial because it helps reduce the water content of the mushrooms, ensuring your quiche doesn’t turn out watery.
Step 3: Prepare the Egg Mixture
While the mushrooms are cooking, whisk together the eggs, milk, garlic powder, salt, and pepper in a large bowl. Be sure the mixture is well-combined, as this will ensure an even texture throughout the quiche.
Step 4: Assemble the Quiche
Once the mushrooms are cooked, spread them evenly across the bottom of the greased pie dish. Pour the egg mixture over the mushrooms, ensuring that they are well distributed throughout. Sprinkle the shredded Swiss cheese on top of the egg mixture.
Step 5: Bake the Quiche
Transfer the pie dish to the preheated oven. Bake for 25-30 minutes or until the quiche is set and lightly browned on the top. The center should no longer be jiggly, and the edges should pull away slightly from the dish.
Step 6: Cool and Serve
Once baked, remove the quiche from the oven and allow it to cool for a few minutes before slicing. This will help it set further and make slicing easier. Serve warm and enjoy your delicious Mushroom and Swiss Crustless Quiche.
Tips for the Perfect Mushroom and Swiss Crustless Quiche
- Cooking the Mushrooms: Ensure that you sauté the mushrooms until they release their moisture. If this step is skipped, the quiche may turn out watery.
- Room Temperature Ingredients: Let the eggs and milk come to room temperature before mixing. This helps them blend more easily and bake evenly.
- Even Cooking: For even cooking, use a pie dish or an oven-safe skillet with even heat distribution. A ceramic or glass dish works well.
- Add Extra Veggies: Feel free to add other vegetables to the quiche, such as spinach, bell peppers, or onions. Be sure to sauté them first to prevent excess moisture.
- Cheese Variation: While Swiss cheese is a classic choice, feel free to substitute or mix in other cheeses like cheddar, mozzarella, or feta for a different flavor profile.
Benefits of Mushroom and Swiss Crustless Quiche
- Low in Carbs: Since this is a crustless quiche, it is a low-carb option, perfect for those on keto or other low-carb diets.
- High in Protein: Eggs are an excellent source of protein, making this quiche a satisfying and nutritious meal that helps you feel full longer.
- Rich in Vitamins: Mushrooms are a source of important nutrients like B vitamins and antioxidants, while eggs provide vitamin D and healthy fats.
- Versatile: This quiche can be enjoyed for any meal, served on its own, or paired with a side salad or soup for a heartier meal.
- Make-Ahead Friendly: The quiche can be made ahead of time and stored in the refrigerator for up to 3-4 days, making it a great meal prep option.
FAQs About Mushroom and Swiss Crustless Quiche
Can I Use Different Types of Cheese?
Absolutely! Swiss cheese adds a distinct flavor, but you can use cheddar, Gruyère, feta, or even a combination of cheeses. Each cheese will provide its unique flavor profile.
Can I Make This Quiche Ahead of Time?
Yes, this quiche can be made ahead and stored in the refrigerator for up to 3-4 days. Reheat individual slices in the microwave or oven before serving.
Is This Quiche Freezer-Friendly?
Yes, you can freeze this quiche for up to 2 months. Let it cool completely, then wrap it in plastic wrap and aluminum foil. To reheat, bake it in the oven until heated through.
Can I Add Meat to This Recipe?
If you’d like to add meat, cooked bacon, sausage, or diced ham would work wonderfully in this recipe. Just make sure they are fully cooked before adding them to the egg mixture.
How Do I Know When the Quiche Is Done?
The quiche is done when the center is no longer jiggly and a toothpick inserted into the middle comes out clean. The edges should also be lightly browned.

Conclusion
This Mushroom and Swiss Crustless Quiche is a delicious and nutritious dish that is simple to prepare, versatile, and perfect for any occasion. By following these steps and tips, you can create a rich, creamy, and flavorful quiche that will impress your friends and family. Whether you’re serving it for brunch, a light lunch, or a savory dinner, this recipe is sure to become a staple in your kitchen.
Not only is it delicious, but it’s also packed with nutrients and easy to adapt to your taste preferences. Feel free to add your favorite vegetables, experiment with different cheeses, or include cooked meat for added protein. The possibilities are endless, and the result is always a satisfying meal.
Try making this crustless quiche today, and enjoy the delightful flavors of mushrooms and Swiss cheese in every bite. Don’t forget to share your creations and let us know your favorite variations of this recipe!