
The French classic sandwich gets a low carb makeover! A grain-free cauliflower crust turns Croque Monsieur into a healthy dinner recipe.

It always surprises me when, given the option of something savoury or something sweet, people choose the savoury. I guess that says a lot about me and my own preferences. After all, I am known as The Low Carb Dessert Queen in some circles. Probably in a lot of circles, come to think of it. I would wager that at least two thirds of the recipes on All Day I Dream About Food are on the sweeter side. I can’t help it, it’s the way my brain works. Dessert is always on offer at our house, as long as it’s healthy, low carb dessert. That’s the way I stay on track and it’s the carrot that keeps my family on track too.
That’s not to say that I don’t have plenty of really great savoury tricks up my sleeve. This blog truly is a treasure trove of delicious low carb recipes, from breakfast to snacks to dinner and dessert. But let’s just say that if someone offers ME the choice between a sweet recipe or a savoury one, I’m gonna go with sweet.

So I offered the peeps on the ADIDAF Facebook Page a choice between this low carb Croque Monsieur made with a cauliflower crust, or a sheet cake. I really, really wanted to post the sheet cake because I am ridiculously excited about it. But the masses have spoken and this time I listened. One person said “I want savoury, I have enough sweet recipes”. Oh no, my friend. You can never have enough sweet recipes! And the sheet cake will be coming soon, I promise…
Have you ever had traditional Croque Monsieur? It’s an open-faced ham and cheese sandwich made on French bread and it’s pretty damn delicious. But pretty damn carby too, as you might imagine. So I thought it would be fun to get those same flavours with a low carb cauliflower crust. Be sure to really squeeze the liquids out of the cauliflower (don’t burn yourself, wait until it’s cool!) for a crisp, non-soggy crust. Even the kids loved this one!
And if you’re looking for vegetarian options, check out this Vegetarian Cauliflower Crust Pizza Recipe.


Cauliflower Croque Monsieur
Ingredients
Crust:
- 1 large head cauliflower
- 1 cup shredded mozzarella
- 2 large eggs
- 2 cloves garlic, minced
- 1/2 tsp salt
- 1/2 tsp pepper
Topping:
- 2 tbsp Dijon mustard
- 2 tbsp mayonnaise
- 1/8 tsp nutmeg
- 1/4 lb thinly sliced ham
- 3 ounces Gruyere cheese, shredded
- 1 cup shredded mozzarella
Instructions
Crust:
- Chop cauliflower into 1 inch florets. Add to a food processor or high-powered blender (if using a blender, add a cup or two of water). Process until finely chopped (drain if using a blender with water).
- Place in a microwave safe bowl and cover with plastic wrap. Microwave on high for 10 minutes. Be very careful when removing plastic wrap as the escaping steam can burn you!
- Set a tea towel into a sieve and drain cauliflower through the tea towel. Let sit until cool enough to handle and then gather the ends of the tea towel together and squeeze out as much liquid as possible. Preheat oven to 425F.
- Return to bowl and add mozzarella, eggs, garlic, salt and pepper. Mix well. Line a large baking sheet with parchment paper and pat cauliflower mixture into a large, flat rectangle, about 12 by 10 inches. Bake until golden brown and becoming crisp on the edges, and firm in the center about 25 minutes.
Topping:
- In a small bowl, whisk together the mustard, mayonnaise and nutmeg. Spread over crust. Arrange ham to cover and then sprinkle with both cheeses.
- Bake another 5 to 10 minutes, until cheese is melted. Broil a minute or two for nicely browned topping.
Notes
Total fat: 15.23g
Calories from fat: 137
Cholesterol: 91mg
Carbohydrate 7.17g
Total dietary fiber: 2.50g
Protein: 15.44g
Nutrition
Nutritional Disclaimer
Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program. I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.
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I love cauliflower crust!
Thanks so much for the quick reply Carolyn!!
Hi Carolyn,
Thanks for another great recipe! Would you be able to estimate approximately how many cups of the riced cauliflower?
Thanks!
Linda 🙂
About 3 to 4. I think this recipes is pretty forgiving, so a little variation will not make it or break it.
We LOVED this. It was amazing. I made it for my (French) mom who is trying to eat lower carb. We’ve been Keto since June, and are trying to convert everyone we love. What would you say is the best way to re-heat leftovers without making the crust soggy?
Wow, that’s high praise indeed! To reheat, make sure you put it on an open rack so heat can get to the bottom of it when it’s in your oven or toaster oven.
this looks freaking amazing!!!!
Looks so good that eating a picture of it will give one the taste but none of the carbs or calories! What’s the ‘red’ coming through the cheese? I didn’t see pizza sauce on the ingredients. Thanks, I will be trying this.
There’s no red. That’s a few browned spots from broiling it for a minute at the end.
I should make the photo’s larger for closer inspection 🙂 Thanks for the quick reply. Drooling here. Serious yum.
No worries! 🙂
This sounds really good! Your cauliflower croque monsieur dish look so yummy and healthy with its cauliflower and cheese ingredients.
Plenty of good shredded mozzarella!
Made this tonight. It was GREAT!!!! I will be making this often. Thank you so much.
I am one of those who prefers savory over sweet! I wasn’t always like that, though. This looks amazing!
Serious drool happening here. As usual, I have most of these ingredients on hand. (Maybe not the Gruyere…. BUT – I will have it soon. Like – by tonight!) This will be our dinner tonight. Thanks!!
I buy the 12 ounce bags of riced cauliflower from the freezer department at Trader Joe’s. How many of those bags would you use for this? They now also sell bags of fresh bagged cauliflower, but I am not sure how big those are, as I haven’t tried it.
About a bag and a half would do it.
“…pretty damn carby, too”, you crack me up 😉
This looks excellent ! Back in the dark ages, when dinosaurs ruled the earth and I was young and could eat carbs, I loved Croque Monsieur. It’s been so long, that I’d even forgotten about them. Thanks so much for another great recipe !
Thanks, Kate! 🙂
The video says to use gruyere cheese rather than mozzarella. Which do you prefer to use?
The topping uses both Gruyere and mozzarella…it’s impossible to fit all the wording in the video so I had to not mention the mozz but use both. It makes it gooier.
Can you say what 1 cup of shredded mozzarella is in ounces or grams, please. I never know if I have the right amount. Am fairly new to low carb…thanks for the recipe, looks yummy.
Hi, Dianne,
One cup of shredded mozz is usually about 4 ounces. Although I admit that I don’t measure cheese much in my world, since a little bit more is just fine with me! 🙂
That sounds about right to me!
Alas, a croque monsieur is a closed ham sandwich with cheese melted over the top slice of bread! (God knows I’ve eaten enough of them.)
But it does look like a good croque pizza 🙂
Well, in the low carb world…I say if it tastes like a duck, it’s a duck. 🙂
You can always fold it in 2!
Wow!… This is the best gift a man could ask for on his birthday!… (I’m 38 today). What an awesome recipe. The picture is deceitful because one may think it’s loaded with carbs… But the crust is cauliflower…lol… And with a little over 4g net carbs, this is a great addition to any meal. Thanks Carolyn…
Happy Birthday!