Keto Zucchini and Bacon Quiche – A Savory, Low-Carb Favorite
Quiche is one of those dishes that feels special without asking much of you. This keto-friendly version keeps it light, flavorful, and satisfying, thanks to crisp bacon, tender zucchini, and a creamy, cheesy custard. It’s great for breakfast, brunch, or a simple weeknight dinner.
Serve it warm for comfort or chilled for a fresh, easy bite. If you’re cutting carbs or just want a tasty, protein-packed meal, this quiche hits the sweet spot.
Keto Zucchini and Bacon Quiche – A Savory, Low-Carb Favorite
Ingredients
- Eggs: 8 large
- Heavy cream: 1/2 cup
- Zucchini: 2 medium (about 1 pound), grated
- Bacon: 6–8 slices, chopped
- Cheese: 1 1/2 cups shredded (cheddar, Gruyère, or a mix)
- Parmesan: 1/4 cup finely grated (optional but recommended)
- Onion or shallot: 1 small, finely chopped
- Garlic: 2 cloves, minced
- Fresh herbs: 2 tablespoons chopped (parsley, chives, or dill)
- Olive oil or butter: 1 tablespoon
- Salt and pepper: To taste
- Ground nutmeg: A pinch (optional, for classic quiche flavor)
- Red pepper flakes: A pinch (optional, for heat)
Instructions
- Prep the oven and pan. Preheat your oven to 350°F (175°C). Grease a 9-inch pie dish or tart pan with butter or oil. If using a springform pan, line the bottom with parchment for easier slicing.
- Cook the bacon. In a skillet over medium heat, cook chopped bacon until crisp. Transfer to a paper towel–lined plate. Reserve 1 tablespoon of the bacon fat in the pan.
- Soften the aromatics. Add the onion to the skillet with the bacon fat. Sauté 3–4 minutes until translucent. Stir in the garlic and cook 30 seconds until fragrant. Remove from heat.
- Grate and drain the zucchini. Grate the zucchini on the large holes of a box grater. Toss with 1/2 teaspoon salt and let sit in a colander for 10 minutes. Squeeze out as much water as you can using your hands or a clean kitchen towel. Removing moisture prevents a soggy quiche.
- Whisk the custard. In a large bowl, whisk eggs, heavy cream, a pinch of nutmeg, red pepper flakes if using, 1/2 teaspoon salt, and 1/4 teaspoon black pepper until smooth.
- Combine the fillings. Stir in the drained zucchini, sautéed onion and garlic, most of the bacon (save a little for the top), shredded cheese, Parmesan, and herbs. Mix gently to distribute evenly.
- Fill the dish. Pour the mixture into the prepared pie dish. Smooth the top and sprinkle with the reserved bacon and a little extra cheese.
- Bake. Bake for 35–45 minutes, until the center is just set and the top is golden. The quiche should have a slight jiggle in the middle. Do not overbake or it can turn dry.
- Rest and slice. Let it sit for 10–15 minutes before slicing. This helps the custard finish setting and makes cleaner slices.
- Serve. Enjoy warm or at room temperature with a simple green salad or sliced avocado.
What Makes This Special
This quiche skips the traditional crust, keeping the carbs low while still delivering that cozy, savory experience. Zucchini adds moisture and mild flavor, while bacon brings smoky richness and a bit of crunch.
A blend of cheeses and a silky egg mixture tie everything together. The result is a quiche that feels indulgent but sits comfortably in a keto lifestyle. It’s also flexible—easy to tweak based on what you have on hand.
Shopping List
- Eggs: 8 large
- Heavy cream: 1/2 cup
- Zucchini: 2 medium (about 1 pound), grated
- Bacon: 6–8 slices, chopped
- Cheese: 1 1/2 cups shredded (cheddar, Gruyère, or a mix)
- Parmesan: 1/4 cup finely grated (optional but recommended)
- Onion or shallot: 1 small, finely chopped
- Garlic: 2 cloves, minced
- Fresh herbs: 2 tablespoons chopped (parsley, chives, or dill)
- Olive oil or butter: 1 tablespoon
- Salt and pepper: To taste
- Ground nutmeg: A pinch (optional, for classic quiche flavor)
- Red pepper flakes: A pinch (optional, for heat)
How to Make It
- Prep the oven and pan. Preheat your oven to 350°F (175°C).
Grease a 9-inch pie dish or tart pan with butter or oil. If using a springform pan, line the bottom with parchment for easier slicing.
- Cook the bacon. In a skillet over medium heat, cook chopped bacon until crisp. Transfer to a paper towel–lined plate.
Reserve 1 tablespoon of the bacon fat in the pan.
- Soften the aromatics. Add the onion to the skillet with the bacon fat. Sauté 3–4 minutes until translucent. Stir in the garlic and cook 30 seconds until fragrant.
Remove from heat.
- Grate and drain the zucchini. Grate the zucchini on the large holes of a box grater. Toss with 1/2 teaspoon salt and let sit in a colander for 10 minutes. Squeeze out as much water as you can using your hands or a clean kitchen towel. Removing moisture prevents a soggy quiche.
- Whisk the custard. In a large bowl, whisk eggs, heavy cream, a pinch of nutmeg, red pepper flakes if using, 1/2 teaspoon salt, and 1/4 teaspoon black pepper until smooth.
- Combine the fillings. Stir in the drained zucchini, sautéed onion and garlic, most of the bacon (save a little for the top), shredded cheese, Parmesan, and herbs.
Mix gently to distribute evenly.
- Fill the dish. Pour the mixture into the prepared pie dish. Smooth the top and sprinkle with the reserved bacon and a little extra cheese.
- Bake. Bake for 35–45 minutes, until the center is just set and the top is golden. The quiche should have a slight jiggle in the middle. Do not overbake or it can turn dry.
- Rest and slice. Let it sit for 10–15 minutes before slicing.
This helps the custard finish setting and makes cleaner slices.
- Serve. Enjoy warm or at room temperature with a simple green salad or sliced avocado.
Storage Instructions
- Refrigerator: Cool completely, then cover tightly. Store for up to 4 days.
- Freezer: Wrap individual slices in plastic, then foil, or use airtight containers. Freeze for up to 2 months.
Thaw overnight in the fridge.
- Reheating: Warm slices in a 300°F (150°C) oven for 10–15 minutes, or microwave in short bursts. The oven preserves texture best.
Benefits of This Recipe
- Low carb, high satisfaction: No crust means fewer carbs without sacrificing flavor.
- Protein-rich: Eggs and bacon keep you full and energized.
- Vegetable boost: Zucchini adds fiber and nutrients with a mild taste that plays well with cheese and bacon.
- Meal-prep friendly: Keeps well, reheats nicely, and works for breakfast, lunch, or dinner.
- Flexible: Swap cheeses, add herbs, or fold in other low-carb veggies.
Common Mistakes to Avoid
- Skipping the zucchini drain step: Excess moisture makes the quiche watery. Squeeze it well.
- Overbaking: If it’s completely firm in the oven, it may end up dry.
Pull it when the center still has a gentle wobble.
- Too much salt: Bacon and cheese are salty. Season lightly and adjust after tasting.
- Using milk instead of cream: For keto and texture, heavy cream is best. Milk thins the custard and adds carbs.
- Uneven mixing: Distribute fillings evenly so each slice has a good balance of zucchini, bacon, and cheese.
Variations You Can Try
- Herb-forward: Use dill and chives with Gruyère for a fresh, brunchy twist.
- Spicy kick: Add diced jalapeño and pepper jack cheese.
Finish with hot sauce.
- Mushroom and bacon: Sauté sliced mushrooms until browned and dry, then add to the filling.
- Spinach and feta: Fold in chopped, well-drained spinach and crumbled feta with a touch of lemon zest.
- Mini quiches: Bake in a greased muffin tin for 15–20 minutes for portable portions.
- Cheese swap: Try cheddar for boldness, Swiss for nuttiness, or gouda for a creamy melt.
FAQ
Can I use turkey bacon?
Yes. It won’t render as much fat or have the same smoky flavor, but it works. Add a teaspoon of olive oil when sautéing the onion to make up for the lost fat.
Do I need a crust for this quiche?
No.
This is a crustless quiche designed for a keto approach. If you want a crust, use an almond flour crust and par-bake it before adding the filling.
How do I prevent a watery quiche?
The biggest key is squeezing the zucchini thoroughly. Also avoid underbaking and let the quiche rest before slicing so the custard sets fully.
Can I make it dairy-free?
You can replace heavy cream with full-fat coconut milk and use a dairy-free cheese alternative.
The flavor and texture will be slightly different but still tasty.
What size pan should I use?
A 9-inch pie dish or tart pan works best. If using an 8-inch pan, bake a few extra minutes; if using a 10-inch pan, check for doneness a bit earlier.
Is this good for meal prep?
Absolutely. Bake it on Sunday, slice it, and store in the fridge.
Reheat slices as needed for quick meals throughout the week.
Can I add more vegetables?
Yes, just keep moisture in mind. Pre-cook watery veggies like mushrooms or spinach and drain them well before adding to the filling.
What if I don’t have heavy cream?
Use a mix of half-and-half and cream cheese (softened) for body. Avoid straight milk if you’re aiming for keto and a rich texture.
How do I know it’s done?
The edges should be set with a slight jiggle in the center.
A knife inserted near the center should come out mostly clean. It will finish setting as it rests.
Can I make it ahead?
Yes. You can assemble the mixture, cover, and refrigerate for up to 12 hours.
Bake straight from the fridge, adding a few extra minutes.
Wrapping Up
This Keto Zucchini and Bacon Quiche is simple, flavorful, and versatile. It’s the kind of recipe you’ll keep coming back to because it fits so many moments—from slow weekends to busy weekdays. With a few basic ingredients and smart technique, you get a satisfying, low-carb dish that feels comforting and fresh.
Make it once and it just might become your new go-to quiche.
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