• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Home
  • Shop
    • Etsy Store
    • E Cookbooks
  • About
    • Privacy Policy
    • Cookie Policy
    • Instagram Gallery
  • Subscribe
    • Facebook
    • Instagram
    • Pinterest
    • Tumblr
    • Twitter
My Life Cookbook - low carb healthy everyday recipes.
  • All Recipes
  • Low Carb
    • Low Carb Breakfast
    • Low Carb Main
    • Low Carb Side Dish
    • Low Carb Snack
    • Low Carb Sweets
  • Low Carb Drink Recipes
  • Air Fryer
  • Instant Pot
  • Slow Cooker
  • Meal Plans
menu icon
go to homepage
subscribe
search icon
Homepage link
  • Home
  • Recipes
  • Low Carb Breakfast
  • Low Carb Main
  • Low Carb Snack
  • Low Carb Sweets
  • Air Fryer Recipes
  • Instant Pot
  • Slow Cooker
  • Etsy Shop
  • Instagram Gallery
  • About My Life Cookbook
  • Privacy Policy
  • Cookie Policy
×

Low Carb Zucchini Au Gratin Casserole – Easy Summer Side Dish!

July 24, 2019 by Denise Leave a Comment

raw zucchini and baking dishes with low carb zucchini au gratin and text overlay
baking dish with low carb zucchini au gratin and text overlay
baking dishes with low carb zucchini au gratin and text overlay

This low carb zucchini au gratin casserole is a delicious side dish to make this summer. Take one of those huge zucchinis from your garden and quickly make this cheesy keto casserole with only 5.1g net carbs.

You might also like feta & zucchini low carb side dish.

low carb zucchini au gratin casserole on blue tea towel

While winter might be comfort food season, I like a good low carb casserole any time of the year. So when my husband handed me yet another huge zucchini from his garden I thought about making this low carb zucchini au gratin casserole.

I’m the only one in my family that eats zucchini but that’s ok because I love it. I made this casserole, ate it for lunch and froze portions for easy microwaveable meals.  This zucchini casserole makes 4 good servings and each one has only 5.1g net carbs.

Other Low Carb Zucchini Recipes

Summer is prime zucchini time. I have so many zucchini recipes on this blog. If you like zucchini please check out some of these popular low carb zucchini recipes. They are all rather easy and definitely delicious!

Who would know low carb zucchini noodles carbonara could taste so good! This easy low carb pasta dish takes less than 20 minutes to make and is so rich and creamy you will really enjoy the veggie noodles!
These savory zucchini waffles are gluten free and low carb. They make a great low carb breakfast or snack and you can even freeze them for later. Only 5 ingredients and 3.1g net carbs per waffle.
These za'atar zucchini chips are a delicious and healthy snack to use some of those plentiful zucchini from your garden. Only 0 or 1 WW points.
This meal of wide zucchini noodles with sausage & peppers is a delicious and easy low carb pasta dish for any day of the week. One serving has 196 cals and 6.4g net carbs. 
What do you make with those huge zucchinis from the garden? Thai curry zucchini soup is a breeze in the Instant Pot and so very tasty! You can make it in the slow cooker too. Best of all you only need 5 ingredients to make this rich and flavorful soup.
These lemon parmesan zucchini noodles are unbelievably flavorful, healthy and only take 10 minutes to make. Perfect with veggies from the garden.

I also have two other zucchini posts: 21 summer zucchini recipes and 7 low carb recipes that will make you love zucchini noodles. I still have a few more zucchini recipes coming in the next few weeks! Zucchini overload??

aerial view of zucchini casserole in baking dish with a small plate serving, wooden spoon and sea salt.

How Many Carbs In Zucchini?

Zucchini is a low carb vegetable and best of all it’s very versatile. You can eat it raw, stuffed, made into noodles or in casseroles and soups! It’s also great roasted. The nutritional information for 1 cup of zucchini chopped is 2.6g net carbs according to the USDA.gov. So grab those garden zucchini and get cooking.

Low Carb Zucchini Au Gratin Recipe

It doesn’t really matter what size zucchini you use so this is a good recipe for those big clubs people are always trying to get rid of. 

Let’s get started. Chop the zucchini and microwave for 3 minutes. Then put it in a tea towel and gently squeeze out the water. Zucchini has a lot of water in it and you want it get out as much as you can because there will be more after cooking. 

chopped zucchini in pink bowl

Now just add the cooked zucchini to a baking dish and mix in the dried minced onion, salt and pepper. Top with shredded gruyere cheese.  I used gruyere but Swiss cheese would also work. 

zucchini and cheese in white baking dish before baking

Pour the cream over top and then sprinkle the pork rinds and parmesan cheese. That’s all there is to it. 

low carb zucchini au gratin casserole before going into oven

Pop it into the oven and bake for 45 minutes until nice and bubbly. Note there still may be some excess liquid but you’ll see that it won’t effect the taste. 

white plate with zucchini au gratin and baking dish in background

Other Low Carb Casseroles To Try

If you like low carb casseroles you might like a few of these. As I mentioned above, I really like casseroles.  They are filling, freeze very well and make a great lunch. Here are a few other easy keto casseroles to try.

  • chicken parmesan casserole
  • broccoli, ham and cheese casserole
  • Italian ground beef caserole
  • spaghetti squash breakfast casserole
  • cheesy cauliflower casserole
  • cauliflower and cheeseburger casserole
  • slow cooker Mexican casserole
  • green bean casserole
  • chicken and broccoli casserole
  • loaded mashed cauliflower casserole
closeup up of low carb zucchini au gratin with a spoonful

Well I hope you give this low carb zucchini au gratin casserole a try. It’s so easy and filling! You can eat this is a side dish or try to freeze some for lunches.  The nutritional information for 1 serving is:

429 cals / 35.3g fat / 6.5g carbs / 1.4g fiber / 23.3g protein = 5.1g net carbs

Where To Buy Pork Rind Crumbs

If you don’t want to make your own pork rind crumbs you can always buy these Pork Panko breading crumbs on Amazon!

baking dish with low carb zucchini au gratin on blue tea towel
Print

Low Carb Zucchini Au Gratin Casserole

This low carb zucchini au gratin casserole is a delicious side dish to make this summer. Take one of those huge zucchinis from your garden and quickly make this cheesy keto casserole with only 5.1g net carbs.

Course Side Dish
Cuisine American
Keyword breakfast casserole, zucchini
Prep Time 10 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 4
Calories 429 kcal
Author Denise

Ingredients

  • 4 cups zucchini, chopped
  • 1 tablespoon dried minced onion
  • ½ teaspoon salt
  • ¼ teaspoon pepper
  • 1 ½ cups gruyere or Swiss cheese, shredded
  • ¾ cup cream, heavy
  • ½ cup ground pork rinds
  • ¼ cup Parmesan cheese, grated

Instructions

  1. Preheat oven to 375°F.

  2. Add chopped zucchini to the microwave and cook for 3 minutes. Take out the zucchini and place in a tea towel and gently squeeze out the excess water.

  3. Place in a sprayed baking dish and mix with onion, salt and pepper seasonings.

  4. Sprinkle gruyere cheese even over top and then pour the cream all over.

  5. Mix the Parmesan cheese and ground pork rinds and then sprinkle over the top.

  6. Bake for 45 minutes until brown and bubbly.

Recipe Notes

The nutritional information for 1 serving: 

429 cals / 35.3g fat / 6.5g carbs / 1.4g fiber / 23.3g protein = 5.1g net carbs

baking dishes with low carb zucchini au gratin and text overlay

More Gluten Free

  • Keto Lemon Pound Cake
  • Cauliflower Rice with Mushrooms and Peas
  • Keto Bacon Cheeseburger Salad
  • Keto Air Fryer Salmon Bites

Subscribe

for your weekly recipe fix.

Reader Interactions

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. As an Amazon Associate I earn from qualifying purchases.

Nutritional information for the recipe is provided as a courtesy and is approximate only. You should always do your own calculations if you are concerned about the accuracy of this or any recipe. I use the Lose It app for all of my nutritional information because I have for years.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




Primary Sidebar

Search

Popular Keto Posts

white plate with chocolate keto brownie cookies with a bit taking out
cookie sheet in background and plate with breakfast cookies in foreground
  • Facebook
  • Instagram
  • Pinterest
  • Tumblr
  • Twitter

Copyright © 2023 My Life Cookbook - low carb healthy everyday recipes. on the Foodie Pro Theme