Cauliflower au gratin makes for a simple yet elegant side dish to serve alongside a roast, with your favorite chicken recipe, at a brunch or as a holiday side dish. With only 5 ingredients, you’ll have this one-dish recipe on the table in 35 minutes from start to finish!
Not only is this baked cauliflower dish quick to make, it also makes a fantastic vegetable side as a low carb or keto cauliflower casserole.
Usually, I don’t tell stories in my recipe posts, but here’s a quick one I just have to share. It was on Easter, and while a normal home cook would already know what they were serving to their dinner guests, *this* food blogger had “ideas” on what to make as side dishes (and didn’t know the day of which of 3 desserts I was making either!) but didn’t have the final menu planned.
So my crazy intention of making up low carb gluten-free blue cheese scalloped “potatoes” (made with cauliflower) had a few kitchen setbacks…again, who actually MAKES UP recipes the day of a holiday haha?
Before frustration could set in too much, I remembered our go-to favorite Brussel sprouts gratin that quickly became one of our family’s favorite ways to cook Brussel sprouts. And what did I do? With a couple of simple tweaks, I was able to whip up a delicious, easy and cheesy cauliflower gratin that only took 35 minutes to make.
Now, if you’re a Brussel sprouts lover too, you won’t want to miss the Brussel sprouts bacon gratin recipe.
Don’t worry, I’ll be coming back to perfecting those keto scalloped “potatoes” really soon, but for now, I’m beyond excited over this simple gluten-free keto cauliflower gratin.
The other thing I love about this low carb cauliflower gratin (that I know you’ll love too?) No unnecessary step of boiling the cauliflower first! Instead, you can easily partially roast the cauliflower in the baking dish and then pour the cheese sauce over the top. It continues to bake until the vegetable is cooked through and the sauce is bubbling and creamy.
Keto Cauliflower Casserole
If you have any dietary restrictions or are following a certain type of health plan, this easy dish is also a low carb, gluten-free, vegetarian, no sugar and keto cauliflower casserole recipe too!
Just simple and pure ingredients are used in this easy and cheesy baked dish.
And for those of you counting carbs (like my hubby), the keto cauliflower casserole only has 3 net carbs. Be SURE to check the labels and buy cheese that has 0 carbs to keep the carb count down. Many pre-shredded cheeses add potato filler that sneaks in extra carbs.
Cauliflower Au Gratin Ingredients
- 1 head of cauliflower, cut into bite sized pieces
- 3/4 cup heavy cream
- 1 1/2 cups shredded 3 cheese blend
- 1/2 tsp garlic salt
- 1/4 .tsp ground black pepper
Cauliflower Au Gratin Recipe Steps
Preheat oven to 400 and spray 7×11 baking pan
Cook cauliflower 25 minutes. It won’t be all the way cooked through but just cooked enough it’ll be perfect throughout after adding the cheese sauce and cooking longer.
Start on the sauce while the cauliflower bakes, the sauce will only take about 6-7 minutes to make.
Blend the heavy cream, one cup of shredded cheese, garlic salt and pepper in a small saucepan on medium-low, stirring constantly until the cheese is melted, the sauce is heated through and starting to thicken. This will take about 6 or 7 minutes.
Pour over the creamy cheese sauce over the cauliflower, top with 1/2 cup cheese and bake 15 more mins or until the cheese sauce is bubbling the cauliflower is cooked through and can easily be pierced through with a fork.
We hope you love this easy cauliflower au gratin recipe that makes a perfect side for a family dinner, a holiday party or even as a vegetarian main dish.
Other Casserole Recipes You’ll Love
- 1 head cauliflower, cut into bite sized pieces
- 3/4 cup heavy cream
- 1 1/2 cup shredded 3 cheese blend
- 1/2 tsp garlic salt
- 1/4 tsp ground black pepper
1. Preheat oven to 400 and grease 7x11 baking pan
2. Cook cauliflower 25 minutes, it won't be cooked through at this point
3. While the cauliflower cooks, start on the sauce. It total the sauce only takes 6-7 minutes to heat.
4. Blend ingredients on medium low, stirring constantly until the cheese is melted and the sauce is heated through and starting to thicken.
5 Pour the cheese sauce over the cauliflower, top with 1/2-1 cup cheese and bake 15 more mins or until the cheese sauce is bubbling, the cauliflower is cooked through and can easily be pieced through with a fork.