A Simple and Delicious Crustless Quiche Recipe You Will Make Time and Time Again

Breakfast food is a staple in my household. Often, we even enjoy breakfast foods for dinner.

This is mostly because mornings can be hectic.

Vertical top-down image of a green-blue ceramic pie dish filled with a crustless vegetable quiche with a slice cut out and arranged on a white plate with a fork, scattered minced chives, and slices of ruby red grapefruit, with a bowl of grapefruit slices to the left and scattered chives to the right, alongside a small glass dish of minced chives atop a white cloth spread out on a brown wooden table.

As a mom, I look for solutions to help me get an easy and nutritious breakfast on the table daily. Sometimes this proves to be difficult.

That’s when this crustless quiche comes to my rescue. Simple and quick is the name of the game, especially when it comes to egg recipes in the morning, and this recipe never disappoints.

So what is a crustless quiche, you ask? Well, it’s nestled somewhere between a frittata and a traditional quiche.

A traditional quiche has a crust and egg mixture filling. This filling may contain a protein, or just veggies. The world is your oyster here, as far as ingredients go.

Vertical image of a slice of vegetable crustless quiche and three slices of ruby red grapefruit with a fork on a white plate, with a blue ceramic pie dish of quiche and a white mug of coffee in the background on a brown table.

I love using our recipe for a mushroom and Gruyere crustless quiche, but this tasty version has an even more fun and colorful mix of asparagus and bell peppers. The veggies are sauteed in a pan, and then the vegetables are transferred to a pie dish along with the egg mixture for baking.

Frittatas do not have a crust and are typically cooked in a cast iron skillet or other oven-safe pan. Like the traditional version, the veggies are sauteed in a pan, but then the egg mixture is added to the skillet, and all ingredients are baked together in said skillet.

Why do I love meals like this?

Crustless vegetable quiche with asparagus, spinach, and red bell pepper in a blue-green ceramic scalloped pie dish with a triangle slice cut out and resting on top of a pie server on top of the quiche, on a brown wood table topped with a white cloth, with a small dish of chopped chives.

Boosting your vegetable intake is essential. Along with incredible amounts of vitamins and minerals, veggies boast a significant amount of fiber, which is something we all need.

Not only is this recipe perfect for hectic weekdays, but it is also a lifesaver during the holidays. I rely on methods like this to make my mornings sail smoothly.

Besides, who wants to be stuck in the kitchen when everyone else is spending time together? Not me.

Ready to give this recipe a try?

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Crustless vegetable quiche with asparagus, spinach, and red bell pepper in a blue-green ceramic scalloped pie dish with a triangle slice cut out and resting on top of a pie server on top of the quiche, on a brown wood table topped with a white cloth, with a small dish of chopped chives.

Perfect Crustless Quiche

  • Author: Leslie Morrison
  • Total Time: 85 mins
  • Yield: 6-8 Servings 1x


This gluten-free crustless vegetable quiche is a perfect make-ahead solution if you’re short on time. Bake yours today to enjoy a hot breakfast tomorrow!


  • 1 tablespoon coconut oil
  • 1 small onion
  • 1 red bell pepper
  • 10 thin stalks asparagus
  • 10 eggs
  • 1/2 cup milk
  • 1/2 teaspoon salt
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon dried parsley
  • 1/8 teaspoon cayenne pepper
  • 1/4 teaspoon freshly ground black pepper
  • 1/2 cup shredded Monterey jack cheese (optional)
  • 1 1/2 cups baby spinach
  • Chives for garnish (optional)


  1. Preheat the oven to 350°F. Grease the bottom and sides of a deep dish pie pan.
  2. Prep the vegetables. Heat coconut oil in a large saute pan over medium-high heat. Add diced onions, diced red peppers, and chopped asparagus, and saute for 5 minutes, or until the onions are translucent and the asparagus is cooked. Remove from heat.
  3. In a separate large bowl, whisk together the eggs, milk, salt, onion powder, garlic powder, parsley, cayenne, and black pepper. Stir in the sauteed vegetables, cheese, and fresh spinach. Stir until well combined.
  4. Pour the egg and vegetable mixture into the prepared pie pan, and bake for 30 minutes, or until a toothpick, when inserted, comes out clean. Remove from the oven and allow the quiche to cool for at least 5 minutes. Then slice and serve! Quiche can also be made the day before and popped in the oven for about 15 minutes to reheat before serving.
  • Prep Time: 10 mins
  • Cook Time: 45 mins

Cooking By the Numbers…

Step 1 – Wash and Prep Your Produce

It’s no secret – washing your produce is essential. With all that our food is exposed to prior our consumption, be sure not to skip this vital step.

Spinach can be washed in a salad spinner and the peppers, asparagus and onion can be patted dry with paper towels before continuing to prep, to avoid adding too much extra moisture to the egg mixture.

Nobody likes gritty asparagus. Try submerging it fully in cool water for a few minutes before rinsing to release any hidden dirt and sand.

Once washed, dice your onion and red bell pepper, and chop the asparagus.

Be sure to trim your asparagus before chopping. The ends tend to get woody and dry.

Three equally-sized piles of chopped white onion, asparagus, and red bell pepper on a striped wooden cutting board.

Usually, cutting about one to two inches from the bottom is sufficient. If you are unsure of where to cut, grab a stalk and while holding both ends, begin to arch (bend) the stalk until it snaps in two. This stalk is now your marker for what length to trim the other stalks.

Also, reach for thinner stalks rather than the super thick ones. The thicker, the woodier in my experience. In this recipe, you want small, tender pieces about 1 inch long.

When dicing the red bell pepper, be sure to remove the white pith and try to keep all pieces about the same size. This will ensure that everything cooks evenly. A medium dice is excellent here.

I used half of a large onion. If you have a small onion, that will work too. Try to match the diced bell pepper in size for even cooking.

Set all produce aside for easy access later.

Step 2 – Measure Other Ingredients

Combine your spices and herbs in a small dish.

I used onion powder, garlic powder, salt, pepper, parsley, and cayenne.

Feel free to utilize your favorite herbs and spices to cater to your palate. Love basil? Add it. A big fan of chives like I am? Toss them in too.

Measure out your milk using a liquid measuring cup and set it aside.

Not a fan of milk, or lactose intolerant? You can easily substitute almond or soy milk in this recipe.

If you like a thick and decadent cream more than milk, you can opt to use heavy cream in its place. This, however, may increase your bake time. The fat content of the dairy you use can also influence the texture, as it dictates how thick and firm or creamy and custard-like your end result will be.

A white ceramic bowl of brown eggs, a glass dish of shredded cheese, a small glass bowl of salt and dry spices, a bowl of spinach, and a bowl of milk are arranged on a brown wooden surface.

I tried using chicken stock once. However, it did result in a spongier texture. Feel free to give it a go, though.

Measure out your cheese and set it aside. If you are lactose intolerant, skip this ingredient, or try a dairy-free shredded version that is good for melting.

I chose monterey jack because it melts perfectly, without adding the greasiness that cheddar is known for. If you prefer cheddar, gouda, or pepper jack, feel free to customize this ingredient to your liking.

Using a fork, beat your eggs in a large mixing bowl. Prefer a whisk? Suit yourself. Go ahead and combine your milk and eggs. Be sure to incorporate the milk entirely.

Step 3 – Saute Vegetables and Preheat Oven

Preheat oven to 350°F.

Heat a nonstick pan over medium heat, add the coconut oil and saute veggies until your onions are translucent.

Be careful not to overcook your veggies here. We aren’t going for caramelized vegetables (unless your version has caramelized onions, then by all means proceed).

A nonstick pan filled with chopped sautéed onions, red bell pepper, and asparagus, on a white kitchen towel atop a brown wooden surface.

I prefer my veggies to still have a slight crunch. In the same way that pasta should be al dente and not mushy, vegetables should be the same.

If you aren’t a fan of asparagus, try adding broccoli instead. Don’t like spinach? Feel free to substitute with kale, swiss chard, or any other leafy green.

Step 4 – Combine Ingredients and Transfer to Pie Dish

Add the sauteed veggies and the dry spice and herb mix to the egg mixture.

Stir well to incorporate, to get rid of any lumps of dry seasonings.

Mix in the spinach (or other leafy green) and incorporate thoroughly.

Transfer this mixture to a greased deep dish pie pan.

A blue-green ceramic pie dish is filled with raw beaten egg mixed with chopped sautéed bell pepper, onion, and asparagus, and fresh spinach, on a brown wooden table.

Why deep dish?

Because I have a house full of boys, and I like to make one large dish versus two small ones. It is your preference here. Use whatever dishes you have available.

If you don’t have a pie dish on hand, a square or rectangular glass baking dish will suffice. Serving up squares rather than wedges will be just as delicious.

A larger dish can increase or decrease bake time depending on how thick your quiche is in that dish. If the quiche is spread over over a 9-by-13-inch dish, it may take less time to cook than if it was prepared in an 8-by-8-inch dish, as it would be much thicker.

If you are prepping this and planning on baking it the next day, here is where you may stop, cover, and refrigerate.

Step 5 – Bake

Bake your deep dish frittata for 30 minutes.

Your top should be golden brown and, when tested, a toothpick should come out clean.

No one wants this meal to be gooey and raw. Save that for eggs benedict or a ramen bowl.

Remove from the oven when done, and cool for 5-10 minutes.

Feel free to garnish with your choice of fresh herbs. Chives make a great addition here.

Slice, Serve, and Enjoy!

One slice not enough? Love this dish and want to enjoy this quiche every day of the week? It’s the perfect meal prep breakfast recipe. Bake one today, and you will have a hot breakfast that’s ready to serve all week long.

A fork holds a bite of crustless quiche in the foreground, with a blue pie dish of vegetable crustless quiche, a small dish of sliced pink grapefruit, and a white plate of grapefruit and quiche, on a brown table spread with a white cloth, with scattered whole chives, and a small glass dish of minced chives.

Don’t forget to make this recipe your own by adding your favorite ingredients. And be sure to leave a comment below, and share those amazing ingredient combinations so we can all try them out!

And if you’re hungry for more gluten-free breakfast recipes, some of these should trip your trigger:

Don’t forget to Pin It!

A collage of photos showing different views of a crustless quiche recipe.

Photos by Leslie Morrison, © Ask the Experts, LLC. ALL RIGHTS RESERVED. See our TOS for more details.

Nutritional information derived from a database of known generic and branded foods and ingredients and was not compiled by a registered dietitian or submitted for lab testing. It should be viewed as an approximation.

About Leslie Morrison

Leslie is a food photographer and writer. She enjoys spending time in her kitchen and behind the lens of her camera and working on her food blog, Deliciously Plated (deliciouslyplated.com). When she isn’t working, she is spending time with her son and her husband.

2 thoughts on “A Simple and Delicious Crustless Quiche Recipe You Will Make Time and Time Again”

  1. I’ve had quiche on the brain as the farmer’s market starts to ramp up. Excited to try my hand at making one without a crust.

  2. Breakfast for dinner was one of my faves growing up! Not sure why I haven’t continued this tradition as an adult because I always have eggs on hand and usually I’m throwing dinner together at the last minute. Crustless quiche is sounds like an easy win!


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