Cheesy Ground Beef & Cauliflower Casserole (Keto)

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This Keto Ground Beef and Cauliflower Casserole is comfort food at its best! This cheesy low carb meal is guaranteed to please the entire family.

keto ground beef & cauliflower casserole plated with the baking dish in the background.

Cheesy Ground Beef & Cauliflower Casserole Keto

Casseroles are warm, inviting, and easy to prepare! There are two that are favorites around my house. We love the amazing Keto Ground Beef Casserole: Perfect Comfort Dish and the tasty Low Carb Chicken Casserole (keto-friendly). Because we love them both, I began thinking, why not combine parts of each into a new recipe? The Cheesy Ground Beef and Cauliflower Casserole is basically a spin-off of these two delicious casseroles. A match made in heaven!

Is Cauliflower OK for Keto?

From main casserole meals to side dishes, cauliflower has taken the keto community by storm. The mild taste and versatility make cauliflower a keto favorite. It’s a tasty alternative to potatoes and rice. What’s great about cauliflower is you can either eat it raw or cauliflower bakes wonderfully! Better yet, there are only 1.5 net carbs in a 1/2 cup of cauliflower. It’s perfect for cauliflower casserole low-carb recipes.

roasted cauliflower on parchment paper

I use fresh cauliflower when making the ground beef creamy cauliflower casserole. If you find it easier, you can also use frozen. Chop your florets into bite-sized pieces. Be sure you thaw your frozen florets before chopping. Try to make the chopped florets uniformly sized so that they will cook evenly.

Before adding it to your keto cauliflower casserole, roast the cauliflower. This will help dry it out and also add more texture. When roasting the florets, I use a tablespoon of olive oil with a little salt and pepper.

ground beef in a casserole dish with cauliflower on top

Time-Saving Tip:  One of the best time savers I have found when cooking is to keep my freezer stocked with browned ground beef. It makes meal prep so much easier. For more time-saving tips like this, check out 5 Simple Keto Meal Prep Ideas to Save You Time.

cheese sauce for cauliflower casserole in a saucepan

During the last few minutes of roasting the cauliflower, I make the cheese sauce. A lot of people are partial to cheddar cheese, but I like using several different kinds of cheese. You can certainly sub your favorites. I simply used what I had on hand.

cheesy ground beef cauliflower casserole ready to put In the oven in a baking dish

Just pour the cheese sauce on top of the casserole dish and pop it in the oven. You could prepare this ahead of time and bake it when ready.

How Long to Bake Cauliflower Casserole Recipe?

cauliflower casserole keto out of the oven in a baking dish with a bite on a serving spoon

This easy cauliflower casserole can be ready in less than an hour so it would be a perfect dish for a quick meal after a busy day. It is filling, delicious, and tastes as good as it looks.

How Many Net Carbs are in this Cheesy Cauliflower Casserole Recipe?

With 6g of carbs and 1g of fiber, this recipe has 5 net carbs per serving. There are 12 servings in this recipe that I divided evenly.


cheesy ground beef and cauliflower casserole plated with a bite on a spoon

Boring casserole? Not tonight! The creamy cauliflower and crispy bacon make this cheesy cauliflower casserole a meal you will look forward to all day. This low-carb dinner is warm, filling, and delicious. Better yet, there are only five net carbs per serving. Not only did my husband love this dish, but the kids gobbled it up! If you love this recipe, you’ll love 20 Delicious Ground Beef Casserole Recipes. 

Variations to This Recipe:

  • If you’re not keen on cauliflower, try using a different veggie (green beans, broccoli, asparagus, zucchini, etc.).
  • Braggs Aminos is a healthier version of soy sauce, and it gives ground beef a deep, savory flavor. You can use soy sauce or Worcestershire sauce instead if you are okay with those.
  • Sub turkey for ground beef.
  • Use a variety of cheese.

Can You Freeze Cauliflower Casserole with Cheese?

I’m not sure the ground beef creamy cauliflower casserole would freeze well, as dairy products like heavy whipping cream, cream cheese, and cheese can break down and become grainy in the freezer. It does store well in the fridge up to five days and rewarms nicely.

What to Serve with Ground Beef & Cauliflower Casserole?

This keto cauliflower casserole is a complete meal in itself, so a nice garden salad would go great with it.

More Easy Keto Casserole Recipes:

It is hard not to love a keto dish with cheese and bacon and this recipe is no exception.


How to Make Cheesy Ground Beef & Cauliflower Casserole:

Keto Ground Beef Casserole plated on a white plate
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4.36 from 31 votes

Cheesy Ground Beef and Cauliflower Casserole

Prep Time10 minutes
Cook Time40 minutes
Course: Dinner, Main Course
Cuisine: American, casual
Servings: 12
Calories: 427kcal
Author: Kasey Trenum



  • Preheat oven to 425 degrees.
  • Wash, dry, and chop fresh cauliflower into bite-sized florets. If using frozen, thaw then chop into bite-sized florets.
  • Add 1 tbsp olive oil to cauliflower (I also sprinkled a little salt and pepper on it) and toss to coat. Pour on a sheet pan covered with parchment paper to roast in a single layer.
  • Roast 10 min then remove from oven and turn over. Roast for 10 more minutes. Remove roasted cauliflower from the oven, then turn the oven down to 375 degrees, so that it can reach the appropriate temperature for baking the casserole.
  • While the cauliflower is roasting, brown ground beef and onions in a skillet then drain.
  • Add salt, pepper, and Bragg's Aminos to the ground beef mixture and stir to combine.
  • Grease a 9 X 13 casserole dish. Pour the ground beef in the bottom.
  • Add roasted cauliflower florets on top of the ground beef.
  • In a saucepan, add the cream cheese, cheeses, heavy whipping cream, and remaining spices (except the parsley). Simmer on low stirring continuously until the cheeses melt and the sauce is smooth. Make sure not to turn the heat up too high, or it will cause the sauce to break down and become grainy.
  • Pour cheese sauce over ground beef and roasted cauliflower.
  • Bake for 25 minutes, then remove from oven and sprinkle the crumbled cooked bacon and parsley on top. Bake for another 4 minutes on the top rack of the oven.
  • Remove from oven and let it rest 5 minutes before serving.
  • Enjoy!


Calories: 427kcal | Carbohydrates: 6g | Protein: 23g | Fat: 35g | Fiber: 1g | Sugar: 2g | Iron: 2mg
Tried this recipe?Mention @kaseytrenumblogger or tag #kaseytrenumblogger!

keto casserole collage with baking dish on the top and plated on the bottom



  1. This was very good when freshly baked. I’m curious what I might be doing wrong though. Because I meal prep so I portion this out into bowl for the week. When I reheat it becomes really greasy at the top after being microwaved.

    1. Most likely the heavy whipping cream is the culprit. Separates when you microwave it. Works better when you reheat in a sauce pan slowly with a little added milk.

  2. This recipe over rates 5 * Well worth the labor! We made our cheese sauce with what we had on hand which was Sharp cheddar, Pepper Jack, enough to equal 2 cups. Added maybe 2 Tb spoons of sour cream and we added some link sausage cut up to flavor the ground meat. Bacon fat for the pan, I finally learned how to make cauliflower florets “Thank you” for inspiring us in this.

  3. I made this recipe and it came out great. I eliminated the bacon because it elevates my pressure. I will definitely be making this again.
    Thanks for sharing.

  4. 4 stars
    I found that my cheese sauce was grainy, it did not melt smooth. Pretty sure I followed your recipe exactly. I wasn’t too pleased after all the work but my hubby and son loved it, so what can I say?

  5. 4 stars
    Made this tonight- its delicious. Flavors are great but my 10yo son asked me “can you not add as much cheese sauce next time?” And I have to agree. This was alot of cheese. Next time I will only make half of the sauce. I fear this batch will go to waste but I will make again soon. Thank you!

    1. Great! It’s always smart to adjust recipes to your personal taste. I don’t like extra cheese on my pizza but my husband loves it, so I get it.

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