This easy crustless quiche is rich, creamy, and packed with eggs, cheese, vegetables, and your choice of protein. Without a pastry crust, it’s simple to prepare and naturally lower in carbohydrates than a traditional quiche. Similar crustless quiches combine eggs, milk, cheese, and vegetables baked until set and golden. (allrecipes.com)

Recipe Details

• Prep Time: 15 minutes
• Cook Time: 35–40 minutes
• Total Time: About 55 minutes
• Servings: 6–8
• Course: Breakfast / Brunch / Light Dinner
• Difficulty: Easy

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Ingredients

Egg Base

• 8 large eggs
• 1 cup (240 ml) milk or half-and-half
• ½ cup plain Greek yogurt or sour cream
• ½ teaspoon salt
• ¼ teaspoon black pepper
• ½ teaspoon garlic powder
• ½ teaspoon onion powder
• ½ teaspoon dried thyme or Italian seasoning

Filling

• 1 tablespoon olive oil
• 1 small onion, diced
• 1 cup spinach, chopped
• 1 cup mushrooms, sliced
• ½ cup bell peppers, diced
• 1 cup shredded cheddar cheese
• ½ cup mozzarella cheese
• ½ cup cooked bacon, ham, sausage, or cooked chicken (optional)

Optional Toppings

• Chopped parsley
• Green onions
• Extra cheese

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Instructions

1. Preheat the Oven

Preheat oven to 375°F (190°C).

Grease a 9-inch pie dish or an 8×8-inch baking dish.

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2. Cook the Vegetables

Heat olive oil in a skillet over medium heat.

Cook:

• Onion for 3–4 minutes
• Mushrooms for 4–5 minutes
• Bell peppers for 2 minutes

Add spinach and cook until wilted.

Remove from heat and let cool slightly.

Cooking vegetables first helps remove excess moisture and prevents a watery quiche. (allrecipes.com)

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3. Prepare the Egg Mixture

In a large bowl whisk together:

• Eggs
• Milk
• Greek yogurt
• Salt
• Pepper
• Garlic powder
• Onion powder
• Herbs

Whisk until smooth.

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4. Assemble

Spread vegetables and optional cooked meat in the baking dish.

Sprinkle cheeses evenly over the top.

Pour the egg mixture over everything.

Gently stir once to distribute ingredients.

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5. Bake

Bake for 35–40 minutes until:

• Center is set
• Top is lightly golden
• A knife inserted in the center comes out mostly clean

The center temperature should reach 160°F (71°C) for egg dishes. (foodsafety.gov)

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6. Rest

Allow the quiche to rest for 10 minutes before slicing.

This helps it firm up and makes cleaner slices.

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Delicious Variations

Spinach & Feta

Replace cheddar with feta cheese and add extra spinach.

Mushroom Swiss

Use Swiss cheese with sautéed mushrooms.

Bacon Cheddar

Add crispy bacon and extra cheddar.

Southwest

Add green chilies, pepper jack cheese, and cooked sausage.

Smoked Salmon

Use smoked salmon, dill, and cream cheese.

Broccoli Cheese

Add steamed broccoli and cheddar.

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Storage

• Refrigerate for up to 4 days.
• Freeze slices for up to 2 months.
• Reheat in the oven, air fryer, or microwave.

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ALL NUT & ALLERGEN INFORMATION

Tree Nuts

No tree nuts are required.

No:

• Almonds
• Walnuts
• Pecans
• Cashews
• Pistachios
• Hazelnuts

Always check packaged cheeses, meats, and seasonings for cross-contact warnings.

Peanuts

No peanuts are included.

Dairy

Contains dairy:

• Cheese
• Milk
• Greek yogurt or sour cream

For dairy-free:

• Use plant-based milk
• Dairy-free cheese
• Dairy-free yogurt

Eggs

Contains eggs.

Eggs are the main ingredient.

Gluten

The basic recipe is naturally gluten-free, but check:

• Bacon
• Sausage
• Seasonings
• Cheese

Soy

Some cheeses, dairy alternatives, and processed meats may contain soy.

Fish

No fish unless using smoked salmon variation.

Shellfish

No shellfish.

Cross-Contact

For severe allergies, check every packaged ingredient and use clean utensils and cookware.

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Q&A

Q: Why is my quiche watery?

Vegetables release moisture. Cook mushrooms, spinach, and onions before adding them.

Q: Can I make it ahead?

Yes. Bake it up to 2 days ahead and refrigerate.

Q: Can I freeze crustless quiche?

Yes. Cool completely, wrap well, and freeze for up to 2 months.

Q: Can I use cottage cheese?

Yes. Blend ½–1 cup cottage cheese into the egg mixture for extra protein.

Q: Can I make it low-carb?

Yes. Since there is no crust, this recipe is naturally lower in carbohydrates.

Q: Can I add potatoes?

Yes, but it will increase the carbohydrate content.

Q: What cheeses work best?

Cheddar, Swiss, mozzarella, feta, goat cheese, Gruyère, and Monterey Jack all work well.

Q: Can I make mini crustless quiches?

Yes. Pour the mixture into greased muffin cups and bake at 375°F (190°C) for 18–22 minutes.

Q: How do I know when it’s done?

The center should be set and no longer jiggly. An internal temperature of 160°F (71°C) indicates egg dishes are fully cooked. (foodsafety.gov)

Q: Can I make it vegetarian?

Absolutely! Simply omit the meat and add extra vegetables.

Q: Is crustless quiche keto?

It can fit a keto-style eating pattern depending on the ingredients used, especially when made with full-fat dairy and low-carb vegetables.