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Kalyn's Kitchen

Low-Carb Ham and Cauliflower Casserole au Gratin (Video)

Low-Carb Ham and Cauliflower Casserole Au Gratin is definitely a treat for low-carb comfort food and this is one of my personal favorite casseroles! 

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Watch the video to see if you might like to make
Low-Carb Ham and Cauliflower Casserole au Gratin.


Low-Carb Ham and Cauliflower Casserole au Gratin found on KalynsKitchen.com

I created this Low-Carb Ham and Cauliflower Casserole au Gratin on a January day a few years back when I wanted some low-carb comfort food. I had ham and cauliflower in the fridge, and thoughts of Low-Carb Twice Baked Cauliflower gave me the idea for this casserole with lots of cauliflower with ham, cream cheese, Greek yogurt, Parmesan, green onion, and cheese. I’d love this delicious low-carb dinner for a cold winter night!

Of course I had to include this one when I updated my collection of 20+ Delicious Low-Carb and Keto Casserole Recipes recipes. There’s not much I don’t love about low-carb casseroles, but one of the biggest reasons I love to make them is the way they guarantee leftovers. And most low-carb casseroles also freeze well, including this one. (Did you know there’s a recipe index page for things that Can Freeze? I love to pull dinner out of the freezer when I don’t want to cook!) This Low-Carb Ham and Cauliflower Casserole au Gratin has been wildly popular; hope you enjoy trying it if you haven’t made this one yet!

Low-Carb Ham and Cauliflower Casserole au Gratin process shots collage

How to Make Low-Carb Ham and Cauliflower Casserole au Gratin:

(Scroll down for complete printable recipe with nutritional information.)

  1. You need at least 6 cups of cauliflower, cut into small pieces.
  2. Cook the cauliflower in boiling salted water until it’s just getting soft; don’t overcook.
  3. Drain the cooked cauliflower well (at least 5 minutes).
  4. While the cauliflower cooks, cut up two cups of ham.
  5. Soften cream cheese in the microwave for a minute or so, then mix in the Greek yogurt (or sour cream), Parmesan, and sliced green onions.
  6. Mash the cauliflower slightly (in the pan you cooked it in) then stir in the sauce mixture so it’s completely mixed with the cauliflower and gently mix in the ham.
  7. Season to taste with fresh-ground black pepper.
  8. Spray the baking dish with nonstick spray or olive oil, put the casserole mixture in in the dish, and sprinkle with cheese.
  9. Bake 30-35 minutes or until the cheese is completely melted and starting to brown and the mixture is hot throughout and starting to slightly bubble.
  10. Let sit about 10 minutes for any liquid in the dish to be absorbed, then serve hot and enjoy! This will keep in the fridge for a few days and reheats well.

Low-Carb Ham and Cauliflower Casserole au Gratin found on KalynsKitchen.com

Make it a Low-Carb Meal:

Low-Carb Ham and Cauliflower Casserole au Gratin would taste great with Peperoncini Chopped Salad, American Greek Salad, or Caesar Salad with Kale, Romaine, and Shaved Parmesan for a low-carb meal.

More Tasty Low-Carb Ideas with Cauliflower:

Roasted Cauliflower with Red Bell Pepper, Green Olives, and Pine Nuts ~ Kalyn’s Kitchen
Indian Spiced Cauliflower Rice ~ the Food Charlatan
Low-Carb Cheesy Cauliflower Soup with Bacon and Green Chiles (Instant Pot or Stovetop) ~ Kalyn’s Kitchen
Garlic and Paprika Roasted Cauliflower ~ Barefeet in the Kitchen
Fried Cauliflower with Bacon and Mushrooms ~ Kalyn’s Kitchen
Cauliflower Tortillas ~ Recipe Girl

Weekend Food Prep:

This recipe has been added to a new category called Weekend Food Prep  to help you find recipes you can prep or cook on the weekend and eat during the week!

Low-Carb Ham and Cauliflower Casserole au Gratin

Low-Carb Ham and Cauliflower Casserole au Gratin

Yield 6 servings
Prep Time 25 minutes
Cook Time 35 minutes
Total Time 1 hour

This Low-Carb Ham and Cauliflower Casserole Au Gratin is definitely a treat for low-carb comfort food.


  • 6 cups raw cauliflower flowerets, cut fairly small
  • 1/2 tsp. salt (for water to cook cauliflower)
  • 2 cups diced ham
  • 4 oz. cream cheese, softened
  • 3/4 cup Greek yogurt (see notes)
  • 2 T finely-grated Parmesan cheese
  • 1/4 cup thinly sliced green onions
  • fresh ground black pepper to taste
  • 3/4 cup grated cheddar cheese (see notes)


  1. Preheat oven to 350F/180C.
  2. Fill a medium-sized pot half full with water, add 1/2 tsp. salt, and start to bring to a boil.
  3. Cut up the cauliflower into small flowerets, discarding the leaves and core.
  4. Put cauliflower pieces into the water and cook at a low boil until the cauliflower is starting to get barely sort. Check it often and don't overcook; the cauliflower will soften more in the oven.
  5. While cauliflower is cooking, cut the ham into very small cubes and slice green onions.
  6. Put cream cheese into a glass dish or measuring cup and soften it in the microwave for a few minutes. (Or you can soften it on top of the pre-heating oven if you don't have a microwave.) When cream cheese is soft stir in the Greek yogurt (or sour cream), Parmesan, and sliced green onions.
  7. When cauliflower is cooked enough to start to soften, pour into a colander placed in the sink and let it drain well (at least 5 minutes; don't rush this step)
  8. Put the drained cauliflower back into the pot you cooked it in and mash with a potato masher until it's barely mashed with quite a few chunks left.
  9. Stir in the sauce mixture and combine well with the cauliflower; then gently mix in the diced ham.
  10. Season to taste with fresh-ground black pepper. (I didn't use salt because the ham and the Parmesan are both salty.)
  11. Spray glass or crockery casserole dish with non-stick spray or olive oil. (I used a glass casserole dish that was about 8" x 10".) Pour cauliflower mixture into the dish, spread out evenly, and sprinkle with the cheese.
  12. Bake 30-35 minutes, or until the cheese is melted and lightly browned and all the mixture is hot throughout and starting to bubble. Let sit 10 minutes for any liquid to be absorbed, then serve hot.
  13. I am assuming that this freezes well, but I still haven't tried freezing it because I never have any leftovers.


You can also use sour cream if you're not a Greek yogurt fan; yogurt has just slightly less carbs. Definitely use more cheese if you'd like!

This recipe created by Kalyn with inspiration from Twice Baked Cauliflower.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 238Total Fat: 14gSaturated Fat: 7gUnsaturated Fat: 5gCholesterol: 65mgSodium: 855mgCarbohydrates: 7.7gFiber: 2gSugar: 4gProtein: 20g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

I'd love to see your pictures if you make this recipe. Share on social media with the hashtag #kalynskitchen so I can see how it turned out for you!

Low-Carb Ham and Cauliflower Casserole au Gratin thumbnail photo

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Low-Carb Ham and Cauliflower Casserole Au Gratin as shown would be suitable for low-carb, Keto, or low-glycemic diets. If you’re wanting it to be suitable for the South Beach Diet they would recommend lean ham, reduced-fat cream cheese, fat-free Greek yogurt, and low-fat cheese.

Find More Recipes Like This One:
Use Casserole Recipes to find more recipes like this one. Use the Diet Type Index to find more recipes suitable for a specific eating plan. You might also like to Follow Kalyn’s Kitchen on Pinterest to see all the good recipes I’m sharing there.

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    178 Comments on “Low-Carb Ham and Cauliflower Casserole au Gratin (Video)”

  1. oh man this is good! re-heats very well and tasted great with spinach.

  2. Looks amazing! I've done the SB diet several times before. My husband and I were just talking yesterday and decided it was time to go back to Phase 1 for a couple of weeks. I'm so thankful to have found your site and all the wonderful ideas! Phase 1 has always been hard, but with these new recipes it should be a lot of fun!


  3. Kevin, everyone in my family who's made it has loved the recipe, even people who "don't like cauliflower."

  4. Now this is a tasty looking casserole! What a great way to finish off that ham languishing in my freezer.

  5. Oh my goodness the mock kale lasagna was wonderful. Many thanks for the great recipes!

  6. Gay, glad you have been enjoying the recipes! I do like the flavor the ground fennel adds to the sauce for the Sausage and Kale Mock Lasagna, but if you have flavorful sausage it will probably be fine without it.

  7. I made this again tonight, my son is having potatoe withdrawals and this seems to help. I left out the ham and added garlic. I am going to try the moke kale lasagana tomorrow night. I just discovered I don't have fennel. How critical is it to the success of the recipe? I am a huge fan. Many thanks,

  8. Holly, glad you liked it. Sending good thoughts for your mom.

  9. Wow – this was so good! I needed comfort food after a very long day at hospital with mom. Thank you for a great recipe!

  10. Made this for dinner tonight and it is absolutely delicious! Thanks for all you do.

  11. Gay, so glad you liked it!

  12. I made this Sunday night and my family loved it. So far, every Phase 1 recipe from Kalyn's Kitchen has been very good. Many thanks for helping me make it through the hardest part of South Beach!

  13. Keith, I do like the idea of adding some Rotel tomatoes to this for a slightly spicy touch!

  14. My wife & I made this last night. It was great, but it's even better today! Some things just need to sit in the fridge overnight to reach their full potential.

    Next time, we plan to try it with a can of well-drained Rotel thrown in.

  15. Wendy, glad you liked the photo!

    I am not sure how this would work with broccoli, but if anyone tries it I'd love to know what you think.

  16. Can I use broccoli instead?

  17. Kalyn,
    You may think your photo isn't photogenic but it was so pretty that it caught my attention enough to want it for dinner this week!
    Just finished reading the entire recipe, comments and all, and cannot wait to try it.

  18. Jill so glad everyone enjoyed it. Thanks for sharing about the pan size; that will help others who might want to double it.

  19. Made this last night and it was delicious! I doubled the recipe and it fit perfectly in a 9X13 dish. Everyone in my family loved it and the best part is I have leftovers for lunch today!

  20. Oh sweet holy Mary this was TO DIE FOR especially because we're in the middle of phase 1-well, half a week left 🙂 and I think we were all feeling like splurging 😉 I think it's good for phase one, but maybe just once a week? I dunno.I checked out the fat content, etc. ah, I don't care it's cauliflower! And Greek yogurt I SWEAR is the greatest thing that EVER happened to me omg! Very very good!!! Sharing with *everyone*!