Name: Cowboy Bacon Onion Quiche Recipe
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 (9-inch) pie crust, homemade or store-bought; 4 cups diced onion (about 2 large onions); 2 tablespoons unsalted butter; 7 large eggs; 1 cup milk; ⅓ cup heavy cream; 1 teaspoon salt; ½ teaspoon ground black pepper; ½ teaspoon garlic powder; 10 cooked bacon strips; 1 ½ cups shredded cheddar cheese

If you’re craving something savory, hearty, and full of flavor, you’ve got to try this Cowboy Bacon Onion Quiche Recipe. It’s one of those recipes that feels cozy and comforting but also a little fancy — perfect for brunch with friends, a lazy weekend breakfast, or even dinner when you want something satisfying without a ton of fuss. I absolutely love how the caramelized onions and smoky bacon marry with creamy eggs and sharp cheddar. Trust me, once you try this quiche, it’ll become a go-to in your kitchen too.

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Why You’ll Love This Recipe

Rich caramelized onion flavor: Slow-cooking the onions brings out a deep sweetness that really elevates this quiche.
Perfect smoky bacon bite: The bacon adds a savory, salty crunch that balances the creamy egg custard beautifully.
Simple yet crowd-pleasing: With basic ingredients you probably have on hand, it’s easy to make but tastes like a showstopper.
Versatile meal option: Great for breakfast, brunch, lunch, or dinner – it’s always a hit with family and friends.

A round pie with a golden crust that has a wavy edge sits in a white pie dish on a white marbled surface. The pie filling is smooth and creamy with a melted yellow cheese layer on top, scattered with small reddish-brown bacon bits and bright green chopped spring onions mainly in the center. To the right of the pie dish, there is a small wooden bowl filled with more chopped green onions and a white bowl holding a broken egg shell. A metal pie server is placed to the left side of the pie, and a green cloth is partly visible near the bottom left corner. photo taken with an iphone --ar 2:3 --v 7 - Cowboy Bacon Onion Quiche, savory brunch ideas, hearty breakfast recipes, bacon and onion quiche, cheesy egg quiche

Ingredients You’ll Need

All the ingredients in this Cowboy Bacon Onion Quiche Recipe come together for a rich, savory combination that’s hard to beat. Using a fresh pie crust makes it extra special, but store-bought works just fine and saves time—something I love on busy mornings!

Flat lay of a golden 9-inch unbaked pie crust in a simple white ceramic pie dish, a small mound of freshly diced yellow onions, a few tablespoons of unsalted butter, seven large whole brown eggs with clean shells, a small white bowl of fresh milk, a small white bowl of heavy cream, a small white bowl with coarse sea salt, a small white bowl with ground black pepper, a small white bowl of garlic powder, ten cooked crispy bacon strips arranged neatly, and a small pile of shredded bright orange cheddar cheese, all arranged with perfect symmetry and balanced proportions, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997 - Cowboy Bacon Onion Quiche, savory brunch ideas, hearty breakfast recipes, bacon and onion quiche, cheesy egg quiche

Pie crust: You can go for homemade to impress or store-bought for convenience—either way, a flaky crust is key.
Onions: I prefer yellow onions because they caramelize beautifully, but sweet onions work great too.
Unsalted butter: This helps cook the onions slowly without burning, giving that lovely golden color.
Eggs: The heart of the custard — make sure they’re fresh for the best texture.
Milk & heavy cream: The combo creates a silky custard that’s creamy but not too dense.
Salt, black pepper, garlic powder: Just the right seasoning to enhance all the flavors.
Bacon strips: Crispy cooked bacon adds smoky depth and wonderful texture.
Cheddar cheese: Sharp cheddar works perfectly for that cheesy punch and gooey melt.

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Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

One of the best parts of the Cowboy Bacon Onion Quiche Recipe is how easy it is to personalize. Over time, I’ve played around with different cheeses and extras to switch things up depending on what I have in the fridge or what mood I’m in.

Cheese swaps: I love trying smoked gouda or pepper jack as a twist—each gives a unique flavor kick that’s delightful.
Veggie add-ins: Sometimes I toss in roasted bell peppers or sautéed mushrooms to sneak in extra veggies without overpowering the base flavors.
Herb boost: Fresh thyme or chives sprinkled on top before baking adds a subtle freshness that brightens the quiche.
Make it gluten-free: Use a gluten-free pie crust to keep it accessible for friends with dietary restrictions.

How to Make Cowboy Bacon Onion Quiche Recipe

Step 1: Slowly caramelize the onions

This step is where the magic starts. Place your diced onions and butter in a large skillet over low heat, stirring every few minutes. Patience is key here—you want them to cook slowly for 25-30 minutes until they’re golden and smell sweetly fragrant. If you like a deeper caramelization, keep cooking for another half hour, stirring occasionally. I used to rush this part, but I learned it’s worth the wait for that rich, mellow flavor that really defines this quiche.

Step 2: Prepare the pie crust

While the onions are caramelizing, preheat your oven to 350°F. Roll out your pie crust into a 9-inch pie pan, pressing it gently into the edges. I always prick the bottom lightly with a fork to prevent bubbles. Keep this chilled in the fridge until you’re ready to fill—this keeps it from shrinking and helps maintain that flaky texture.

Step 3: Whisk the custard mixture

In a large bowl, combine the eggs, milk, heavy cream, salt, black pepper, and garlic powder. Whisk until fully blended and slightly frothy. The cream and milk make the custard luxurious but balanced, so don’t skip either! This is a great moment to taste and adjust seasoning if you want a little more zip.

Step 4: Assemble the quiche

Grab your pie crust from the fridge and evenly spread the caramelized onions on the bottom. Crumble or chop the cooked bacon strips and scatter them over the onions, then sprinkle the shredded cheddar cheese on top. Pour the custard mixture carefully over everything, trying not to displace your ingredients. This layering gives a beautiful blend of flavors in every slice.

Step 5: Bake until golden and set

Place your quiche on the center rack in the oven and bake for 35-40 minutes. The top should turn a lovely golden brown, and the middle will be firm when gently shaken. I like to test doneness by inserting a knife in the center—if it comes out clean, you’re good! Let it cool for 15-20 minutes before slicing to help everything settle and make it easier to cut clean pieces.

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Pro Tips for Making Cowboy Bacon Onion Quiche Recipe

Slow and steady onions: Don’t rush caramelizing onions—low heat and patience create that perfect sweetness and depth.
Keep crust cold: Chilling the pie crust before baking prevents sogginess and keeps it flaky.
Use real cream: The heavy cream makes the custard silky; using only milk makes it too runny.
Let it rest before slicing: Cooling allows the filling to set fully, so you get nice, clean slices.

How to Serve Cowboy Bacon Onion Quiche Recipe

A thick slice of quiche is shown on a dark plate with a green cloth beneath it, set on a white marbled surface. The quiche has three visible layers: the bottom light beige, flaky crust with a crimped edge, a middle creamy yellow layer filled with small bits of meat and cheese, and a top golden layer sprinkled with crispy brown bits and small green onion pieces. The background is softly blurred, showing more eggs in a white dish and parts of the quiche. The lighting highlights the smooth and slightly shiny texture of the filling. Photo taken with an iphone --ar 2:3 --v 7 - Cowboy Bacon Onion Quiche, savory brunch ideas, hearty breakfast recipes, bacon and onion quiche, cheesy egg quiche

Garnishes

I usually sprinkle a little fresh chopped parsley or chives over the top after baking to add a pop of color and a fresh bite. A spoonful of sour cream or a dollop of guacamole brings a lovely tang that pairs surprisingly well with the smoky bacon and sweet onions.

Side Dishes

This quiche pairs wonderfully with a crisp green salad tossed in a light vinaigrette or roasted seasonal veggies for a balanced meal. I’ve also served it alongside fresh fruit or a tangy tomato chutney for brunch, and both are fantastic.

Creative Ways to Present

For special occasions, I like to bake the quiche in individual mini tart pans. They’re adorable on a brunch table and perfect for portion control. Another fun idea is to cut the quiche into small squares and serve as savory finger foods at a party – they’re always devoured quickly!

Make Ahead and Storage

Storing Leftovers

If you have leftovers (which is rare in my house!), I wrap them tightly in plastic wrap or store in an airtight container in the fridge. It keeps well for up to 3 days, and the flavors even develop a bit, which is a nice bonus.

Freezing

I’ve frozen this quiche both baked and unbaked. For baked quiche, wrap tightly in foil and freeze for up to 2 months. Thaw overnight in the fridge and reheat gently in the oven. For unbaked, assemble in a freezer-safe dish, cover tightly, and bake straight from frozen—just add extra baking time. Both methods have worked well for me.

Reheating

To reheat, I pop slices in a preheated 350°F oven for about 10-15 minutes until warmed through. Avoid microwaving if you can, since that can make the crust soggy and the filling rubbery. Oven reheating keeps the texture just right.

FAQs

Can I make this Cowboy Bacon Onion Quiche Recipe vegetarian?

Absolutely! Simply omit the bacon and consider adding extra veggies like mushrooms, spinach, or roasted peppers to keep it hearty and flavorful. You can also add smoked cheese for that savory depth.
What’s the best way to avoid a soggy bottom crust?

Chill your pie crust before filling and consider blind-baking it for 8-10 minutes if you want to be extra sure. Also, make sure your onion mixture isn’t too wet by cooking off all excess moisture during caramelization.
Can I use other types of cheese in this recipe?

Definitely! Cheddar is classic, but you can use Swiss, Monterey Jack, gouda, or even pepper jack for a bit of heat. Mixing cheeses can add complexity too!
How do I know when the quiche is done baking?

Look for a golden-brown top and a set custard that doesn’t jiggle when you gently shake the pan. You can also insert a knife in the center—if it comes out clean, your quiche is ready!

Final Thoughts

This Cowboy Bacon Onion Quiche Recipe holds a special place in my recipe box because it’s so reliable and crowd-pleasing — every time I make it, friends and family ask for seconds. The rich caramelized onions paired with smoky bacon and gooey cheddar make every bite a little celebration. I hope you’ll give it a try soon and discover just how easy it is to make a truly impressive quiche from scratch. Trust me, you’ll be glad you did!