Crustless Quiche

Update : March 7, 2026

why make this recipe

Crustless quiche is a delicious and versatile dish that is perfect for any meal of the day. It is easy to prepare, making it an excellent choice for busy mornings or gatherings with friends. This quiche is also gluten-free, allowing those with dietary restrictions to savor a tasty treat without worrying about crusts. Plus, with its mix of eggs, cream, and a variety of fillings, it’s packed with protein and flavor, making it both satisfying and hearty.

how to make Crustless Quiche

Ingredients:

6 large eggs
⅔ cup whole milk
¼ cup half-and-half
½ teaspoon kosher salt
¼ teaspoon ground black pepper
1 teaspoon Dijon mustard (optional)
Pinch ground nutmeg (optional)
1 ½ cups mix-ins of choice (e.g., ⅔ cup grated Gruyère cheese, 2 tablespoons chopped fresh chives, cooked crumbled lean beef, chopped and sautéed broccoli, caramelized onions, cubed leftover roast beef, roasted vegetables)

Directions:

Preheat Oven & Prepare Dish: Preheat oven to 375°F (190°C). Generously grease a 9-inch pie dish or similar-sized oven-safe baking dish with butter or cooking spray, ensuring all surfaces are coated to prevent sticking.
Prepare & Sauté Vegetables/Fillings: Prepare your chosen vegetables: thoroughly thaw and squeeze dry any frozen spinach; finely dice onions; slice mushrooms. Heat 1 tablespoon butter or olive oil in a medium skillet over medium heat. Sauté onions for 3-5 minutes until translucent, then add mushrooms and other hardier vegetables (like bell peppers or broccoli) and cook for 5-7 minutes until softened and moisture is released. If using, prepare cooked crumbled lean beef or cubed leftover roast beef. Set all cooked fillings aside to cool slightly.
Whisk Eggs & Dairy Base: In a large mixing bowl, vigorously whisk the 6 large eggs until yolks and whites are fully combined and slightly frothy (about 1-2 minutes). Pour in the ⅔ cup whole milk and ¼ cup half-and-half. Add ½ teaspoon kosher salt, ¼ teaspoon ground black pepper, 1 teaspoon Dijon mustard (if using), and a pinch of ground nutmeg (if using). Whisk all ingredients thoroughly until well incorporated, forming a homogenous base.
Combine Fillings: Add your 1 ½ cups of mix-ins, including the ⅔ cup grated Gruyère cheese, 2 tablespoons chopped fresh chives, and your cooled sautéed vegetables/prepared lean beef/roast beef, directly into the egg and dairy mixture. Gently fold with a spatula until all fillings are evenly distributed throughout the egg base, avoiding overmixing.
Bake the Quiche: Carefully pour the entire quiche mixture into your generously greased 9-inch pie dish. Place the dish into the preheated 375°F (190°C) oven and bake for 40 to 55 minutes. The quiche is done when the top is golden brown and the center is set, showing only a slight, uniform jiggle when gently moved. If the top browns too quickly, loosely tent with aluminum foil for the last 10-15 minutes of baking.
Cool & Serve: Once baked, carefully remove the quiche from the oven. Allow it to cool on a wire rack for at least 10-15 minutes (up to 20 minutes) before slicing. This crucial cooling period allows the custardy filling to fully set, ensuring clean and beautiful slices. Serve warm, either on its own or with a fresh green salad for a complete meal.

how to serve Crustless Quiche

Serve the crustless quiche warm. It’s great on its own or paired with a simple side salad to balance its richness. Consider adding some sliced tomatoes or a dollop of yogurt for extra flavor.

how to store Crustless Quiche

To store leftovers, let the quiche cool completely, then cover it with plastic wrap or aluminum foil. It can be kept in the refrigerator for up to 3 days. You can also freeze it, wrapped tightly, for up to 2 months. Reheat slices in the microwave or oven before serving.

tips to make Crustless Quiche

Experiment with different mix-ins to keep the recipe fresh and exciting each time you make it.
Always allow the quiche to cool slightly before slicing for cleaner pieces.
You can use any cheese you have on hand, not just Gruyère.

variation

You can make a Mediterranean version by adding spinach, feta cheese, and sun-dried tomatoes. Or, try a Mexican twist with diced bell peppers, jalapeños, and cheddar cheese.

FAQs

Can I make Crustless Quiche ahead of time?
Yes! You can prepare it the night before, cover it, store it in the fridge, and bake it in the morning.

What mix-ins can I use?
Feel free to use any vegetables, meats, or cheeses you enjoy. Just ensure they are cooked or prepped before mixing into the egg base.

How do I know when the quiche is done?
The quiche is done when the top is golden brown and the center has just a slight jiggle. A knife inserted in the center should come out clean.