Roasted Cauliflower Casserole

Roasted Cauliflower Casserole – 3-cheese cauliflower casserole – bites of roasted cauliflower florets in a creamy , cheesy sauce baked until golden. The ideal side to elevate your holiday meal.

If you’re looking for a great addition to your Thanksgiving table, this cauliflower recipe is it.

It compliments any Thanksgiving dinner and the wonderful flavor will make it a huge hit even with picky eaters or those who aren’t a huge fan of cauliflower.

This may become their new favorite way to enjoy this vegetable.

Why this recipe works:

1. Looks like Au Gratin Potatoes but this Cauliflower Casserole. Wins over even picky eaters!
2. Roasting vegetables easily adds incredible flavor.
3. The melty cheese sauce makes this easy recipe super comforting.
4. It’s hearty enough for a weeknight meal – simple enough you don’t have to wait for a special occasion.
5. The cheese goodnness is like a cauliflower mac but in a cauliflower casserole recipe.

Ingredients in Cheesy Cauliflower Casserole?

Below you’ll find the ingredients for this Cauliflower au gratin casserole.

• head of cauliflower
• olive oil
• salt and pepper
• garlic powder
• melted butter
• full-fat sour cream
• cream cheese
• sharp cheddar cheese and gouda cheese
• baking dish or casserole dish

How to cut cauliflower:

This VIDEO shows the easiest way to cut cauliflower without making a mess of it. From there, move on to the recipe below ⇓

How to make Cheesy Cauliflower Casserole:

Preheat the oven to 425° then line a baking sheet with parchment paper for easy cleanup.

Cut the cauliflower head into florets or small pieces then transfer to the baking sheet. Drizzle with olive oil, salt, pepper and garlic powder then gently toss to coat. 

Roast the cauliflower florets for 15-18 minutes on a lower oven rack. Cooking time will vary. You’re looking for fork tender cauliflower and lightly brown on the bottom.

In a medium bowl, melt butter then add sour cream, softened cream cheese, 1 cup of the cheddar and 1/2 cup of the gouda cheese. 

Lightly spray a shallow casserole dish with cooking spray then add the roasted cauliflower. Add dollops of the cream cheese mixture to the top of the cauliflower then sprinkle with the remaining cheese.

Transfer to the preheated oven and bake 8-10 minutes or until golden and bubbly.

Garnish (optional) with fresh chopped parsley and serve warm. 

Subs and variations to this recipe:

• Add a scattering of bread crumbs before baking for a little texture.
• Sprinkle on panko breadcrumbs before baking for a little texture and flavor.
• Add slivered green onions to the top of the finished dish just before serving.
• Blend cloves of roasted garlic into the cheese instead of garlic powder.
• Fresh herbs (thyme for one) would be a great addition.
• Try different cheese like parmesan cheese  (though you won’t get the same creamiess) or

  monterey jack.

What to do with leftover cauliflower casserole:

Cover leftover cauliflower casserole with plastic wrap or store in an airtight container in the fridge up to 3 days.

Best main dishes with Cheesy Cauliflower Casserole:

Roasted cauliflower casserole would be delicious with any of the easy recipes below.

• Herb-Garlic Butter Air Fryer Turkey Breast
• Air Fryer Cornish Hens
• 20 Minute Honey Balsamic Pork Tenderloin
• Apricot Glazed Pork Tenderloin

More popular holiday side dishes:

Homemade Cranberry Sauce – one small saucepan and just 10 minutes. Way better than canned!

Green Bean Casserole – small batch with fresh green beans, mushrooms but NO canned soup.

Homemade Gravy – with OR without drippings, this is the best gravy recipe, loaded with rich flavor.

Gouda Mashed Potatoes – creamy, buttery mashed potatoes ramped up with Gouda cheese.

Maple Brussels Sprouts – roasted with crispy edges tossed with bacon and a maple syrup Dijon mustard glaze.

Full printable details for this Cheesy Cauliflower Casserole recipe in the recipe card below. Enjoy!

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Cheesy Cauliflower Casserole

A Gouda Life

Cheesy Roasted Cauliflower Casserole – bites of roasted cauliflower in a creamy 3-cheese sauce baked until golden - delicious holiday side dish.

5 from 6 votes

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 30 minutes mins

Total Time 40 minutes mins

Course Side Dish

Cuisine American

Servings 6

Calories

Ingredients

  

1x2x3x

• 1 large head cauliflower
• 2 tablespoons olive oil
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 1 teaspoon garlic powder
• 4 tablespoons butter melted
• 4 ounces cream cheese softened to room temperature
• 1/2 cup sour cream
• 1 1/2 cups sharp cheddar cheese shredded
• 1   cup gouda cheese shredded
• cooking spray
• 2 tablespoon fresh parsley optional garnish

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Instructions

 

• Preheat the oven to 425° then line a baking sheet with parchment paper for easy cleanup.
• Cut the cauliflower head into florets then transfer to the baking sheet. Drizzle with olive oil, salt, pepper and garlic powder then gently toss to coat. 
• Roast cauliflower 15-18 minutes on a lower oven rack until tender-crisp and lightly brown on the bottom.
• In a medium bowl, melt the butter then add sour cream, softened cream cheese, 1 cup of the cheddar and 1/2 cup of the gouda cheese. 
• Lightly spray a shallow casserole dish with cooking spray then add the roasted cauliflower. Add dollops of the cheese mixture to the top of the cauliflower then sprinkle with the remaining cheese and bake 8-10 minutes or until golden and bubbly.

  Garnish (optional) with fresh chopped parsley and serve warm. 

Notes

Cauliflower roasting time will vary with ovens and the baking sheet you use. You want the cauliflower to be tender-crisp and lightly brown on the bottom.

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