Keto Broccoli Casserole

Keto Broccoli Casserole is a low carb, gluten free version of the classic side dish recipe often enjoyed during holidays like Thanksgiving. It’s made using all keto-friendly ingredients and is just as tasty, if not tastier, than the original.

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There are so many things to love about this keto-friendly broccoli cheese casserole. It is sure to become one of your favorite ways to cook broccoli. Each crisp floret is smothered in creamy cheese – the result is the best broccoli casserole recipe! 

Broccoli Casserole was a regular in my parent’s home on holidays. Every Thanksgiving and Christmas (and maybe even Easter), my mom would make a casserole, knowing that not a single crumb would go to waste. And, as an adult, I would make my mom’s recipe for every holiday and sometimes just because. 

This version is gluten free, lower in carbs, and just as easy and to make as the original. It’s also just as tasty, if not better!

Enjoy this casserole during holidays along side of other dishes like Rosemary Apricot Glazed Turkey, Candied Sweet Potatoes with Pineapple, and Keto Green Bean Casserole.

Why This Recipe Works

It’s naturally gluten-free and is fantastically low-carb. Even if you aren’t on the keto diet, you will love how delicious this broccoli side dish is. Save yourself time in the kitchen; it’s a Thanksgiving side that you can prepare ahead and store in the refrigerator. Then, before dinner, just heat it in the oven.

Most classic casseroles use some form of a can of creamed soup, but this healthier, low-carb version is made without canned soup. There really is no need to use it and it tastes even better!

This simple holiday side dish is full of cheesy goodness. It’s a simple way to get kids to eat their veggies (and picky adults, too, for that matter!). 

Step-By-Step Instructions

Ingredients

• 4 cups chopped broccoli
• 8 ounces sharp cheddar cheese (shredded from a block)
• 1 cup keto-approved mayonnaise (can use any mayonnaise if not keto)
• 2 eggs
• 1/4 cup heavy cream
• 2 tablespoons butter (melted)
• 3/4 cup blanched almond flour

The entire recipe and instructions can also be found in the recipe card at the bottom of this post. You can also print the recipe from the card, if needed.

Prep!

Preheat your oven to 350°F. Butter or grease the inside of a medium size casserole dish.

Chop the broccoli by hand or by adding it to the bowl of a food processor and pulsing just a few times. Shred the cheddar cheese.

Chef’s Tip: it is recommended to shred the cheese from a block. Bags of pre-shredded cheese contain added starches which can make yoru dish grainy.

Create!

Add the chopped broccoli, shredded cheddar cheese, mayonnaise, egg, and heavy whipping cream in a large mixing bowl. Mix thoroughly until evenly combined.

Spoon the broccoli mixture into the prepared casserole dish. Spread evenly in the casserole dish.

In a small bowl, mix the melted butter and blanched almond flour with a fork until coarse “breadcrumbs” form.

Sprinkle the almond flour crumbs evenly over the top of the prepared casserole.

Bake for 45-55 minutes, or until the almond flour crumbs are golden brown and the casserole is just slightly jiggly in the center. It will set more as it cools.

Present!

Serve warm.

Tips and Techniques

• You can usually find already chopped broccoli available in either the produce or frozen food sections of most grocery stores. While, fresh is always best, frozen can be used. Just be sure to thaw it first.
• Always shred cheese from a block rather than buying a bag of shredded cheese which contains starch to keep it from sticking together. The starch not only adds carbohydrates, it also keeps the cheese from melting nicely.
• Keto-approved mayonnaise may be hard to find unless you have a specialty or health food store nearby. You can find a few different brands on Amazon.com. If you are on a strict keto-diet, you want to avoid soybean and canola oils.
• Leftovers can be stored in an airtight container in the refrigerator. Use within 3-5 days.
• It is recommended to reheat leftovers in the oven or a toaster oven for best results.

FAQ’s

Do You Have To Cook Broccoli Before Putting It In A Casserole?

No, you don’t have to cook the broccoli before you put it in the casserole. The broccoli will cook as the rest of the ingredients heat up. 

Can You Freeze Broccoli Casserole?

Yes, you can make this ahead of time and store it in the freezer. Keep it in a freezer-safe airtight container and wrap it tightly with aluminum foil. Keep it in the freezer for up to six months. 

What veggies taste good with broccoli?

If you want to add more veggies to this casserole, add some chopped cauliflower and mushrooms. They are both low-carb choices. You can also add some matchstick carrot pieces, but carrots are higher in carbs, so be careful with how much you add. 

More Low Carb Side Dish Recipes

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This recipe was originally published on December 27, 2018. It was updated with new images, step-by-step instructions, tips, techniques, and FAQ’s in September 2022.