Crustless Caramelized Onions and Cheese Recipe

Name: Crustless Caramelized Onions and Cheese
Prep time: 15 min
Cook time: 45 min
Total time: 60 min
Yield: 8
Ingredients: 1 tablespoon butter; 2 teaspoons olive oil; 1 small onion, diced; 0.75 cup heavy whipping cream; 3 eggs; salt and ground black pepper to taste; 0.75 cup shredded mozzarella cheese; 0.25 cup grated Parmesan cheese

Cook Time: 45 minutes

Ingredients

1 tablespoon butter
2 teaspoons olive oil
1 small onion, diced
cup heavy whipping cream
3 eggs
Salt and ground black pepper to taste
cup shredded mozzarella cheese
cup grated Parmesan cheese

Directions

Step 1: Preheat the oven to 350F (175C). Grease an 8-inch square baking dish or pie pan.

Step 2: Heat butter and olive oil in a skillet over medium-high heat. Add the diced onion and cook, stirring occasionally, until softened, about 10 minutes. Transfer the onion to a plate and let it cool.

Step 3: In a bowl, whisk together the heavy cream, eggs, salt, and black pepper. Stir in the shredded mozzarella cheese, grated Parmesan cheese, and the cooled onion.

Step 4: Pour the mixture into the prepared baking dish.

Step 5: Bake in the preheated oven for about 35 minutes, or until the eggs are set and a knife inserted in the center comes out clean. The edges should be lightly browned, but the top should not be overly brown.

Cook's Note

This dish does not rise much, so if it appears flat, that is normal. It may be challenging to remove from the pan, even if youve greased it with non-stick spray.

Nutrition Facts (per serving)

Calories: 168
Total Fat: 15g (19% Daily Value)
Saturated Fat: 8g (42% Daily Value)
Cholesterol: 113mg (38% Daily Value)
Sodium: 149mg (6% Daily Value)
Total Carbohydrates: 2g (1% Daily Value)
Dietary Fiber: 0g
Total Sugars: 1g
Protein: 7g (13% Daily Value)
Vitamin C: 1mg (1% Daily Value)
Calcium: 138mg (11% Daily Value)
Iron: 0mg (2% Daily Value)
Potassium: 67mg (1% Daily Value)

Servings Per Recipe: 8

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

The Crustless Caramelized Onions and Cheese recipe is a delightful dish that combines the rich, sweet flavor of caramelized onions with creamy cheeses, creating a satisfying meal. Its simplicity and versatility make it a perfect option for a quick yet delicious dinner or brunch. But how did this dish come to be? Let's dive into its origin, regional variations, and what makes it stand out among similar dishes.

History and Origin

The origins of caramelized onion dishes can be traced back to French cuisine, where onions have long been celebrated for their sweetness when slow-cooked to a golden-brown hue. The caramelization process, which enhances the natural sugars in the onions, has been used in a variety of dishes, including tarts, soups, and quiches. The crustless version of this recipe, however, is a more modern interpretation that focuses on the simplicity and rich flavor of the key ingredients without the need for a traditional pastry crust.

Regional Variations

This dish, though simple, can be modified to suit different regional tastes. In some regions of France, especially in Provence, caramelized onions are often paired with herbs like thyme or rosemary, adding a fresh herbal note to the dish. In Italy, a similar approach might include the use of ricotta or mascarpone cheese, creating a slightly creamier texture. Meanwhile, in the United States, many cooks opt for cheddar or Swiss cheese, making it a comforting, crowd-pleasing meal with a more pronounced cheese flavor. Whether served as a quiche or a simple egg bake, this dish has endless possibilities based on local preferences and available ingredients.

How It's Different from Similar Dishes

What sets the crustless caramelized onion and cheese dish apart from other similar baked egg dishes, like quiches or frittatas, is its focus on simplicity and flavor. Traditional quiches often require a pastry crust, which can sometimes overpower the filling. The crustless version removes this extra element, allowing the caramelized onions and cheeses to shine in all their glory. Furthermore, it tends to have a lighter texture compared to frittatas, which are often more dense due to their high egg-to-ingredient ratio. The balance of cheese, onions, and eggs in this dish makes it the perfect comfort food for any time of day.

Where It's Typically Served

The crustless caramelized onions and cheese dish is typically served as a hearty breakfast or brunch item, especially in casual gatherings or family meals. It pairs wonderfully with a fresh green salad, making it an ideal light lunch or dinner. Youll often find this dish at farm-to-table restaurants or bistros that focus on fresh, seasonal ingredients. Additionally, it is popular as a potluck dish or as a make-ahead meal, as it can be enjoyed both warm and at room temperature.

Interesting Facts

Did you know that caramelizing onions is not just about making them sweet? The process of slow-cooking onions breaks down complex sugars, which creates a rich umami flavor that can elevate any dish. In fact, caramelized onions are often used in gourmet burgers, sandwiches, and even soups. Moreover, the combination of onions with cheeses like mozzarella and Parmesan provides a delicious contrast in texture, with the cheese offering a creamy consistency that complements the slight crispness of the caramelized onions.

For those who are watching their carb intake, this dish is also a great low-carb option, as it doesnt require a crust. Many variations can be adapted to suit dietary preferences, including the use of dairy-free cheeses or adding vegetables like spinach or mushrooms for added nutrition and flavor.

Conclusion

Crustless Caramelized Onions and Cheese is a dish that can easily be made your own, with endless possibilities for customization based on what you have in your pantry or the seasonality of ingredients. Whether you stick to the basic recipe or get creative with additions, its a comforting, flavorful meal that offers a satisfying combination of sweet, savory, and creamy elements.

FAQ about Crustless Caramelized Onions and Cheese Recipe

You can store the leftover quiche in an airtight container in the refrigerator for up to 3 days. To reheat, you can microwave individual servings or warm it in the oven at 350°F (175°C) for about 10-15 minutes until heated through.

Yes, this quiche can be frozen. After it has cooled completely, wrap it tightly in plastic wrap and then foil, or store it in an airtight container. It can be frozen for up to 2 months. To reheat, let it thaw overnight in the refrigerator, then bake in the oven at 350°F (175°C) for about 20-25 minutes until warmed through.

You can substitute the heavy cream with half-and-half, milk, or a non-dairy milk such as almond or oat milk. Keep in mind that using milk or non-dairy alternatives may result in a slightly less rich texture.

Yes, you can use different cheeses in place of mozzarella and Parmesan. Some popular options include cheddar, gouda, or gruyère. Keep in mind that different cheeses will change the flavor of the quiche.

Absolutely! You can add vegetables like spinach, mushrooms, bell peppers, or zucchini. Just be sure to sauté them beforehand to release any moisture so they don’t make the quiche too watery.

This quiche is meant to be dense and custardy, so it doesn't rise much. If you're expecting a fluffy, puffed-up texture, this recipe may not be what you're looking for. It’s normal for it to be flat.

Yes, you can double or halve the recipe. Just be sure to adjust the baking time accordingly. If you double the recipe, you may need to increase the baking time by 10-15 minutes, while halving it may reduce the baking time by a few minutes.

To prevent sticking, make sure to grease your baking dish thoroughly. You can use butter, cooking spray, or even dust the pan with flour after greasing it. Some people also prefer to use parchment paper.

The quiche is done when the eggs are set and a knife inserted into the center comes out clean. The edges should be light brown, but the top should not be too dark. If you're unsure, it’s always a good idea to check with a toothpick or knife to confirm the quiche is cooked through.

This quiche pairs wonderfully with a light salad, roasted vegetables, or crusty bread. You can also serve it with fresh fruit or a simple tomato salad for a well-rounded meal.

Comments

duboo

10/06/2025 01:52:54 PM

I used this recipe as a base for my veggie quiche and it was excellent. I will use this again. Besides the veggies, what I did change was that I added 1/2 cup of flour and this made it pretty light and fluffy. Also, after I sprayed my pan with Pam, I dusted it with flour. The quiche came out clean and neat and nothing stuck to the pan. I strongly recommend doing that.

Singinghwk

02/03/2014 05:44:57 AM

This was so easy, and so delicious! I made a couple of small changes, and it worked out really well! First, I fried up 2 pieces of bacon, then added the butter and olive oil, as well as about a clove of minced garlic. Then I added the onion and sauteed it as directed. I also used cheddar cheese, rather than the mozz, and made a little extra - 4 eggs, etc. I had great luck using a glass baking dish sprayed with Butter-flavored Pam. No sticking at all! This was so easy to do, that I'll be adding it to my "things I do all the time" file... :)

KAS

11/12/2015 06:31:13 PM

Delicious and easy to make. Like several others, I doubled the recipe. Doubled, it serves 2-3 people unless you eat very small portions or you use jumbo-sized eggs. I had half-and-half on hand so I used that in place of the whipping cream. I sautéed 2 chopped onions and some baby kale in a tablespoon of duck fat, which really brought this to life. I added garlic, a little nutmeg, shredded sharp cheddar, and crumbled dried morel mushrooms to the egg & cream mixture. I topped the quiche with a sprinkling of hot Spanish paprika. I greased the pan with butter and had no problem with the quiche sticking to the pan. I used an 8x8 ceramic pan to bake it in. My husband kept coming back for more. Enough said :-)

courtneymae84

09/08/2013 03:22:39 AM

Loved this recipe. Modified it slightly for what I had on hand. Substituted sharp cheddar for the mozzarella and put in closer to a cup. Also added a sliced tomato before baking and when cooking the onion added two cloves of minced garlic (I doubled the recipe and cooked it in a 9x13 pan, took a little longer.) It was sooooo good. Making it for the second time today!

dania1013

06/19/2016 02:40:48 PM

This was so easy and delicious! I doubled the eggs but kept the milk, cheese and everything else the same. I caramelized the onion in an iron skillet. Then poured egg mix into skillet and baked in oven for 35 min. It was perfect and husband loves! I will definitely make this again.

Jayne Doe

12/31/2020 07:40:14 PM

Absolutely delicious. I made in an 8x8 pan, increased eggs to 5, and used mozzarella and a combo gruyere/white cheddar. Used canola oil pan spray and a light dusting of flour. Had no problems with sticking. Garnished with more caramelized onions and chopped parsley. Loved by all! Easy to make, but the caramelized onions and variety of cheeses really make it an impressive dish.

Carol

02/14/2016 10:52:43 AM

I did make a few changes to the recipe, using 4 jumbo eggs and increasing most of the other ingredients proportionately. However, I substituted evaporated milk for the heavy whipping cream and kept the amount at 3/4 cup because of the difference in consistency. I also added a cup of chopped fresh spinach and about 3/4 cup diced roasted red peppers, which I thought made interesting additions. I baked it in a 9x9 inch baking dish for 45 minutes. It was tasty. I expect to use the basic onion quiche recipe repeatedly, adding whatever vegetables on hand need to be used up. Thanks for a great basic recipe.

mary annie

06/20/2017 08:46:50 PM

I doubled the recipe and followed it exactly except I added some baby spinach and kale from my garden . I used the pan I had the onion in that was still hot and dropped in the chopped greens and let then just sit there until it was time to add to the eggs and cream. I cooked mine in a ceramic quiche dish and it was finished in about 37 minutes. Everything about this quiche is perfect. I am only using this recipe from now on with or without a crust. It had a beautiful texture and I think you could use it as a basis for many ingredients. So easy , so yummy!

KARENVG

04/10/2020 01:42:08 PM

I made this last night for dinner during our stay-at-home order here in Los Angeles. Since we are not going out or even visiting the grocery store until supplies are very low, I made a few modifications using what we had in the pantry and fridge and it was wonderful! Caramelized onions makes every recipe special! Modifications included: 5 eggs, jack cheese and added sautéed zucchini, corn and a few strips of bacon. We are running low on milk so I used Rice Dream, vanilla flavored. This crustless quiche came out slightly sweet (Rice Dream) and hubby loved it! I served small portions and offered him more but he declined stating he wanted to enjoy it again at another meal! This is a great recipe that's versatile based on what's available in the fridge and pantry.

Pam Funk

01/28/2025 02:30:13 AM

Like most others, I doubled the recipe. I used egg whites and plant-based whipping cream. I added bettergoods brand Mushroom Umami Seasoning, and garlic. Baked in a glass baking dish after spraying and dusting with flour.

Carol Walsh

04/24/2020 08:24:47 PM

I made this using what I had on hand due to Covid 19. Used a mix of leeks and onions, Used half and half instead of cream. I added left over zucchini and some sun dried tomatoes. We had this for lunch and really liked it. You could add other veggies such as spinach, asparagus or mushrooms. Will make this again

Cynthia Sanchez

12/16/2024 04:05:54 PM

So easy, even for a beginner like me.

GiftedYolk2482

09/09/2024 09:10:59 PM

Easy, low-carb dinner with on-hand ingredients. I had Swiss rather than mozz so mine was higher fat but ready in a flash.

sraza1

05/18/2021 09:46:06 PM

This was super yummy! I followed the recipe exactly (using a pie pan). But I did add mushrooms from a jar. I just added the mushrooms to the onions and sautéed them together.

Carol Walsh

04/24/2020 08:24:47 PM

Lisa Millimet Tabor

03/29/2020 07:52:32 PM

Simple & delicious! Can’t wait to try it with additional veggies and/or meats and with a variety of cheeses! Definitely going to become a weekly staple.

Pamela

03/15/2020 11:44:31 PM

increased eggs to 6 and onions to 4 and added some fresh spinach - delish

RookieChef

03/12/2020 09:00:32 PM

Deliciously rich, irresistibly moist, this quiche is a showstopper. I followed the recipe exactly except for three changes, I thought that putting honey ham in it would bump up the flavor and would go very well with the cartelized onions, I was right, it was delectable. I also substituted the heavy whipping cream with half in half and it still turned out perfect. I also used Monterey Jack cheese instead of mozzarella and had no problems with it. Served it for lunch and the fam loved it. I will definitely make this again.

plates4u

09/17/2018 05:59:35 PM

This is absolutely fabulous, delicious, and best of all very easy to do. My recommendation would be to use Wilton's Bake Easy! and bake it in a ceramic or glass pan. Mine came out fluffy and did not stick to my Le Cruiset ceramic pan. This not only makes for an easy breakfast but also an easy dinner with crusty bread or cherry tomatoes on the side!

Betty Paxton

09/05/2018 04:56:11 AM

I added browned chorizo, and some extra mozzarella cheese and one extra egg...wonderful!

Cook Time: 20 minutes

Cook Time: 10 minutes