Casseroles? Oh, where do I even start? They’re practically woven into the fabric of my childhood. I remember being this tiny little thing, all of maybe five years old, perched on a stool in the kitchen. I’d peek through the oven door, mesmerized as the cheese bubbled and browned on top of our family’s favorite casserole dish.
“Careful, Liv!” Mom would always warn, pulling me back from the heat. “Don’t touch! It’s hot!” Of course, that just made me want to touch it more. Back then, ovens were a bit… unpredictable, weren’t they? Remember those days when the top would burn to a crisp while the middle was still cold? We’ve come a long way, baby! Now ovens have all sorts of bells and whistles!
But you know what really took my casserole game to the next level? My Instant Pot Duo! Seriously, I feel like a kitchen wizard. It’s so quick, easy, and everything cooks evenly. Plus, clean-up is a breeze! I’ll share more about how to use it for this keto broccoli casserole with heavy cream later, but trust me, it’s a total time-saver! You can find similar Instant Pots through my affiliate links (I may earn a commission if you purchase through my link), as an Amazon Associate, I earn from qualifying purchases.
Speaking of this recipe, let’s chat about broccoli. Ever wondered how it stacks up against its pale cousin, cauliflower? Both are great, but broccoli’s the overachiever in the veggie world. It’s got more vitamin C, K, and fiber than cauliflower. Talk about green power!
Why You’ll Love This Recipe
Okay, friend, let’s get real about this keto broccoli casserole with heavy cream! I know what you’re thinking… “Another broccoli casserole?” But trust me on this one. This isn’t your grandma’s dry, bland casserole. I wanted to make a perfectly friendly side dish.
I’ve experimented with full fat cream cheese versions before, but this time, I wanted something extra special. That’s where the heavy cream comes in.
The heavy cream is like liquid silk, creating a velvety smooth texture that you just can’t get any other way. Combined with the sharp cheddar cheese, parmesan cheese, and mozzarella cheese, it creates the most decadent, creamy cheese sauce. Each bite is an explosion of cheesy goodness, and melt-in-your-mouth perfection, and if there are leftovers, you know you’ll sneak a few spoonfuls before putting them away. Lol!
It’s like a warm hug for your taste buds, truly! This recipe for a cheesy broccoli casserole is an easy broccoli cheese casserole. This keto casserole recipe is sure to become your new favorite way to enjoy broccoli. This will soon become your new favorite low carb side dishes.
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Nutritional Information for Keto Diet
Not only is this casserole delicious and low carb, but it’s also a secret health weapon. Cruciferous vegetables, particularly broccoli aren’t just tasty – it’s a nutritional ninja! It is a tasty way to treat your body right! A simple way to make a complete meal to share with your entire family.
The heavy cream and cheese bring the healthy fats to the party, making this low carb casserole recipe a mouthwatering side dish. These fats are like fuel for keto dieters, keeping you satisfied and energized. Plus, the protein from the cheese is great for your muscles. This keto & low recipe is truly one of a kind. It truly is a cheesy casserole of a perfect side dish.
So, grab your apron and let’s whip up this easy keto broccoli casserole. Your taste buds (and your body) will thank you! It’s such an easy recipe for the whole family.

Keto Broccoli Casserole with Heavy Cream
This recipe card will include all the step-by-step instructions. This recipe is for a full meal for the whole family. This keto broccoli casserole with heavy cream will be your main dish. The best part is there isn’t a lot of cooking process required and made with simple ingredients. This recipe is not medical advice. This recipe is not made with almond flour.
Ingredients:
4 cups fresh broccoli florets
1 cup of fresh chopped spinach (optional, but why not add more nutrients)
1 cup heavy cream
1/2 cup sour cream
1 cup shredded sharp cheddar cheese
1/2 cup grated parmesan cheese
1/2 cup shredded mozzarella cheese
2 cloves garlic, minced or two teaspoons of garlic powder
1/4 cup of chopped onion or two teaspoons of onion powder
Salt and black pepper to taste
Optional: 1/4 cup crumbled bacon
Step-by-Step How to Make this Keto Casserole in the Oven
Preheat your oven to 375°F (190°C). Grease a casserole dish with butter or oil.
Steam the broccoli florets until tender-crisp, about 5 minutes. Drain well to remove excess water.
Chop up the spinach.
In a large mixing bowl, combine heavy cream, sour cream, garlic, garlic powder, and onion powder.
Add 3/4 of the cheddar, parmesan, and mozzarella cheese to the creamy sauce. Stir well the cheese mixture.
Fold in the steamed broccoli, spinach, and optional bacon. Season with salt and black pepper. This mixture will be the broccoli mixture.
Transfer the broccoli mixture to the prepared baking dish. Sprinkle the remaining cheese on top.
Bake for 25-30 minutes until golden brown and bubbly.
You can also leave a little bit of crispy bacon on the side, to top the casserole with it later so it stays crispy.
How to Make it in the Pressure Cooker/Instant Pot
- In a large mixing bowl, combine all ingredients as per the above instructions.
- Transfer the ingredients to a baking dish that will fit into your pressure cooker or Instant Pot.
- Add one cup of water to the bottom of the Instant Pot.
- Use a trivet to lift the casserole dish above the water level. Cook on high pressure for 5 minutes on medium heat, then quick release.
Be very careful when removing the dish from the Instant Pot as it will be very hot.
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Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. To ensure longevity, cover it with plastic wrap before placing it in the container. You can also freeze it in a freezer-safe container but make sure it is at room temperature before doing so. Reheat in the microwave or oven until warm.
This keto broccoli casserole with heavy cream is sure to become a family favorite. It’s perfect for those following a keto diet or anyone looking for a delicious, nutrient-dense meal. You will want to save this recipe for next time. It is a classic casserole. Enjoy!