Keto Crustless Zucchini Quiche Recipe (2024)

A crustless zucchini quiche is a delicious way to utilize an abundance of summer zucchini. This vegetarian quiche is very low carb so it's perfect for keto diets, too.

Jump to Recipe Print Recipe

Keto Crustless Zucchini Quiche Recipe (1)

At first, I was leary of using zucchini in a quiche because I thought it might be watery. I was wrong. It's amazing! The rich custard filling, delicate zucchini flavor, herbs, and mellow saltiness from the smoked gouda cheese is winning combination. And, ditching the crust means this recipe is low carb!

THIS POST INCLUDES AFFILIATE LINKS TO SHARE THE THINGS I LOVE.

What’s best? Sliced Zucchini or Grated Zucchini for Quiche?

You’ll see zucchini quiche recipes made with sliced zucchini and grated zucchini. After testing this recipe both ways, I found that grated zucchini works much better in this crustless zucchini quiche. Why?

  • Grated zucchini is easy to squeeze dry
  • Grated zucchini is easy to layer
  • Zucchini rounds release a lot of water in the quiche, even when salted and patted dry
  • Zucchini rounds need to be sauteed before adding to the quiche or they don't cook completely
  • Zucchini rounds sink to the bottom of the quiche

The Perfect Quiche Ingredient Ratio

The perfect egg-cream-cheese ratio for a quiche is ¼ cup of cream and 1 ounce of cheese for each egg. Because zucchini contains so much water, it was important to change the ratio for this zucchini quiche custard. Adding an extra egg and a little more cheese while decreasing the amount of heavy cream did the trick!

Keto Crustless Zucchini Quiche Recipe (2)

The Perfect Low Carb Crustless Zucchini Quiche

As far as low carb keto quiches go, this is an easy one. But for the best results you must grate the zucchini and remove as much water as you can. Don't worry, it's a piece of cake:

Grate one pound of zucchini and put it into a colander in the sink. Mix salt into the zucchini and let it sit for several minutes (the salt draws water out of the zucchini). Rinse the zucchini well to remove the excess salt. Then, using clean hands, squeeze out as much liquid as you can from the zucchini.

Then, go on to make the quiche but don't forget to layer the ingredients!

Layer Your Quiche Ingredients

Want the best quiche? Do me a favor... Layer. The. Ingredients. Layering the ingredients prevents heavier ingredients from sinking to the bottom and ensures even distribution.

Sprinkle a quarter of the cheese into a quiche dish or a pie plate. Layer roughly one third of the ingredients into the pie plate followed by another layer of cheese. Repeat twice more. Pour the frothy egg mixture over the layers and bake.

To refrigerate, allow your zucchini quiche to cool completely and cover with cling film. Reheat a slice of quiche in the microwave or in the oven. Serve with a green salad or this refreshing sweet bell pepper salad.

Refrigerate up to 1 week or freeze for up to 3 months.

Keto Crustless Zucchini Quiche Recipe (3)

Customize your quiche!

I love this zucchini quiche as written, but I did experiment with other seasoning combinations. In one variation I added two teaspoons of my homemade ranch seasoning. While the quiche was delicious and VERY FLAVORFUL, I felt like the zucchini's delicate flavor was lost. However, if you aren’t a huge fan of zucchini, this may be a great option for you!

Here are some ideas for customization:

  • add 2 teaspoons of ranch seasoning or lemon pepper
  • try adding basil or parsley
  • use green onions instead of chives
  • add crumbled bacon or chopped ham for more protein
  • try topping the zucchini quiche with crumbled feta cheese or dollops of ricotta cheese
  • add a flaky low carb pie crust

Other Great Low Carb Keto Vegetarian Quiche Recipes

Low carb vegetarian recipes are sometimes hard to find. Quiche is great because it benefits from the protein contributed from the eggs and cheese. Plus, it looks so nice on a plate. Here are three more great low carb vegetarian recipes.

  1. Crustless Mushroom Quiche
  2. Spinach and Mushroom Quiche
  3. Zucchini gratinby my friend Mellissa at I Breathe I’m Hungry.

Keto Crustless Zucchini Quiche Recipe (4)

Crustless Zucchini Quiche Recipe

This Zucchini quiche promises rich custard filling, delicate zucchini flavor, herbs, and mellow saltiness from smoked gouda cheese - a winning combination!

Print Pin Rate

Course: Breakfast, Dinner

Cuisine: American

Prep Time: 20 minutes minutes

Cook Time: 50 minutes minutes

Total Time: 1 hour hour 10 minutes minutes

Servings: 6

Calories: 314kcal

Author: Kim Hardesty

Ingredients

  • 1 pound grated zucchini
  • ½ teaspoon salt
  • 6 large eggs
  • 1 cup heavy cream
  • 8 oz smoked gouda cheese (or add ⅛ - ¼ teaspoon liquid smoke)
  • 2 tablespoon snipped fresh chives
  • ½ teaspoon dried dill
  • ¼ teaspoon salt
  • ¼ teaspoon white pepper
  • 2 teaspoon soft butter

Instructions

Preparation

  • Place the zucchini in a colander and sprinkle with ½ teaspoon salt. Thoroughly mix salt into zucchini with your hands. Let sit for 10 minutes. Grate the cheese.

  • Preheat oven to 350 F and set rack to middle position. Butter a 9 - 10 inch pie plate or quiche dish.

Method

  • Rinse the zucchini with running water very thoroughly. With clean hands, squeeze out as much liquid from the zucchini as you can. Place the zucchini into a medium bowl and mix well with the dried dill and chives.

  • Measure salt, pepper, eggs and heavy cream into a medium bowl and beat until frothy.

  • Layer ¼ of the cheese into the pie plate followed with ⅓ of the zucchini. Alternate layering cheese and zucchini until used up. Gently pour the egg mixture over the quiche.

Bake

  • Bake for 40-50 minutes depending on you oven or until the quiche is browned and just slightly soft in the middle. Remove from the oven and let cool to room temperature before serving.

  • Cover with cling film and refrigerate any leftovers. Reheat in the microwave or oven. Great served with a green salad.

  • Serve warm with a green salad. Serves 6 at 4.1g NET CARBS per serving.

Nutrition

Calories: 314kcal | Carbohydrates: 5g | Protein: 14g | Fat: 27g | Cholesterol: 291mg | Sodium: 577mg | Fiber: 0.9g | Sugar: 1.75g

Keto Crustless Zucchini Quiche Recipe (5)

Spinach and Mushroom - Vegetable Quiche

Keto Crustless Zucchini Quiche Recipe (6)

Broccoli Cheddar Quiche with Bacon

Keto Crustless Zucchini Quiche Recipe (7)

Low Carb Spinach Feta Quiche

Keto Crustless Zucchini Quiche Recipe (2024)

FAQs

Can I use milk instead of heavy cream for quiche? ›

While it is not as traditional for quiches such as quiche Lorraine, you can use milk instead of heavy cream for quiche.

Is zucchini good on the keto diet? ›

Yes, zucchini is keto. A medium zucchini has about 6 total grams of carbs and 2 of them are fiber. So one whole zucchini has 4 net carbs. Zucchini is very popular on the low carb diet.

How long does crustless quiche last in fridge? ›

TO STORE: Refrigerate quiche in an airtight storage container for up to 3 days. TO REHEAT: Rewarm leftovers in a pie dish in the oven at 350 degrees F. TO FREEZE: You can freeze a crustless quiche.

What can I use if I don't have heavy cream or milk? ›

Substitutes for heavy cream can include options like a soy milk-olive oil combo, evaporated milk, and coconut cream, among others. Heavy cream features in a wide variety of recipes, including soups, sauces, homemade butter, ice cream, and sour cream.

What is the ratio of eggs to milk in a quiche? ›

Quiche Ratio: 1 large egg to 1/2 cup of dairy

You'll need to increase the amount of eggs and milk based on the size of your quiche, so knowing the basic ratio makes it really easy to scale up or down. For a standard 9-inch quiche: Use 3 large eggs (6 ounces) 1 1/2 cups of whole milk or cream (12 ounces)

Which vegetable is not allowed in keto? ›

Starchy vegetables contain more digestible carbohydrates than fiber and should be limited when you're on the ketogenic diet. These include corn, potatoes, sweet potatoes and beets. Limit high-sugar fruits too, which spike your blood sugar more quickly than berries and have more carbohydrates.

Can you eat unlimited vegetables on keto? ›

Eating Vegetables on the Keto Diet

To eat vegetables in a keto diet, limit those that contain a lot of carbs, like potatoes, corn, and peas. 4 Instead, up your intake of non-starchy vegetables.

How many carbs a day on keto? ›

On the keto diet, you are allowed to have no more than 50 grams of net carbs per day – and the fewer, the better! But by focusing on “net” rather than “total” carbs, you won't be denying your body the essential fiber it needs for proper function.

What not to put in quiche? ›

Avoid Fillings That Are Too Wet

"Some vegetables, such as sliced large tomatoes or raw zucchini, have a high water content and will make your quiche soggy (even if you follow all steps to avoid this!)," Davila notes.

Why is my crustless quiche soggy? ›

One is if you didn't cook the meat and vegetables long enough, leaving excess moisture. That will make any quiche watery. Also, if the crustless quiche is baked too long or fast, the eggs might bind too quickly, releasing water and resulting in a soggy quiche.

What is the secret to a fluffy quiche? ›

Baking: Be sure to preheat your oven and bake the quiche at the right temperature. A moderate oven temperature allows the custard to set gently, promoting a fluffy texture. Resting: Allowing the quiche to rest for a few minutes after baking can help the custard set and achieve a fluffy, creamy texture.

What is crustless quiche called? ›

WHAT IS A FRITTATA? Frittatas are Italian in origin and can be described as a cross between an omelet and a crustless quiche.

What is the difference between a frittata and a crustless quiche? ›

Crust: A quiche has crust while a frittata does not. Sometimes, quiche is baked without crust. Base Ingredients: While both frittatas and quiches are made with eggs, quiche is made with an egg custard, which also includes cream or milk. Some frittatas are made with egg whites only.

Can you freeze uncooked crustless quiche? ›

You can even freeze it for later! Freeze it unbaked, then thaw before that special guest comes over at Christmastime and you look like a hero with a hot baked egg casserole. You're just that good. Thank you crustless quiche — it's a life lesson to learn once, and use forever.

What happens if you use milk instead of heavy cream in pasta? ›

But milk won't whip like heavy cream. Can I use milk instead of heavy cream in pasta? Yes. Use whole milk and stir in a flour-butter mixture to thicken and enrich pasta dishes instead of heavy cream.

Can you use milk instead of heavy cream for eggs? ›

Use 1 tablespoon of cream, milk or water for each egg that will be scrambled. Using milk, half & half or even whipping cream creates a deliciously creamy texture.

Why isn't my quiche creamy? ›

Figuring out your proportions couldn't be simpler – for each egg you use, you need half a cup of milk. Too little dairy, and your quiche will be dry instead of creamy. Too much, and it won't set properly.

How do I substitute dry milk for heavy cream? ›

If you find yourself short on heavy cream but you happen to have powdered milk in your pantry, try using it to give your dishes some added thickness and creaminess. One or 2 tablespoons of powdered milk can help to thicken sauces and soups that have a liquid base of something other than cream.

References

Top Articles
Latest Posts
Article information

Author: Margart Wisoky

Last Updated:

Views: 6006

Rating: 4.8 / 5 (78 voted)

Reviews: 93% of readers found this page helpful

Author information

Name: Margart Wisoky

Birthday: 1993-05-13

Address: 2113 Abernathy Knoll, New Tamerafurt, CT 66893-2169

Phone: +25815234346805

Job: Central Developer

Hobby: Machining, Pottery, Rafting, Cosplaying, Jogging, Taekwondo, Scouting

Introduction: My name is Margart Wisoky, I am a gorgeous, shiny, successful, beautiful, adventurous, excited, pleasant person who loves writing and wants to share my knowledge and understanding with you.