Roasted Cauliflower is such a simple and easy, crowd pleasing side dish recipe!  A head of cauliflower is cut into pieces, tossed with olive oil, parmesan, and seasonings before being oven roasted to tender perfection. Plate it next to any entree you like for the best dinner ever!

roasted cauliflower on a sheet pan


Parmesan Roasted Cauliflower

I’m always looking for good but simple veggie side dishes like the classic Oven Roasted Vegetables or  our Bacon Green Beans and a good Buttered Corn Recipe. Cauliflower is one of those veggies that you can be so sneaky with. Toss it into recipes like loaded cauliflower casserole and you won’t even know it’s in there! However, for those of us who are actually fond of the flavor and texture of cauliflower, it’s pretty great when oven roasted with a handful of simple ingredients. Olive oil, parmesan, and a medley of simple seasonings can dress up a head of cauliflower deliciously! Another big thing I love about this veggie side dish recipe is just how easy it is to make. You just need a few minutes of prep time, then the oven does all the work for you!

Why is My Cauliflower Mushy?

Since cauliflower has a high water content, it can easily overcook. Make sure to not overcrowd the pan when roasting so there’s space for air to flow while cooking. Bake the cauliflower on a piece of parchment or a silicone baking mat for the best results.  Make sure you use the amount of oil called for in the recipe and don’t just pour it on, too much oil can make for mushy cauliflower.

How to Make Roasted Cauliflower

Prepare the cauliflower. Cut the head of cauliflower into bite-sized pieces. Toss the pieces with salt, pepper, garlic powder and olive oil. Sprinkle on the parmesan cheese and toss again.
Roast the cauliflower. Spread the cauliflower into an even layer on a baking sheet. Bake at 425°F for 20 minutes, then stir it around before baking for another 10 minutes.
Enjoy! Serve your roasted cauliflower immediately with your choice of entree.

photo of ingredients needed to make cauliflower in the oven roasted

What to Serve With Cauliflower?

Parmesan roasted cauliflower is a versatile side dish! Pair it with various entrees like easy Baked Chicken Drumsticks, Roast Beef Tenderloin or stay meatless with garlic butter Mushroom Pasta. Be sure to comment below and let me know how you served your cauliflower side dish!

Storing Parmesan Roasted Cauliflower

In an airtight container in the fridge, parmesan roasted cauliflower will stay fresh for about 2-3 days. Let it fully cool to room temp prior to storing to avoid condensation building up in the container. Cauliflower has enough moisture, we don’t want to add to it!

You can reheat roasted cauliflower in the microwave or stovetop, but it might come out mushy. For a crispier result, preheat the oven to 350°F and place the cauliflower on a parchment-lined baking sheet and bake until warm (about 8-10 minutes). I do NOT recommend freezing parmesan roasted cauliflower. It will not freeze or thaw well.

Ingredient Notes for Parmesan Roasted Cauliflower

Cauliflower – You can use a whole cauliflower head for this recipe and then break it down. I did use pre-washed and cut cauliflower for this recipe and it also worked perfectly.
Seasonings – This recipe calls for a simple sprinkle of salt, pepper, and garlic powder. Feel free to add more spices if you’d like! Easily add some heat to this recipe by adding a small amount of cayenne pepper, red pepper flakes, or some cajun seasoning.
Parmesan Cheese – I recommend using freshly grated parmesan cheese for the best consistency and flavor. And for an additional cheesy treat, sprinkle freshly grated parmesan over the top when serving.
Olive Oil – You can swap this with avocado oil if preferred.

roasted parmesan cauliflower on a spoon



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Roasted Cauliflower

Roasted Cauliflower is such a simple and easy, crowd pleasing side dish recipe!  A head of cauliflower is cut into pieces, tossed with olive oil, parmesan, and seasonings before being oven roasted to tender perfection. Plate it next to any entree you like for the best dinner ever!
Prep 15 minutes
Cook 30 minutes
Total 45 minutes
Servings 4



  • Preheat oven to 425 degrees.
  • Line a baking sheet with a piece of parchment paper or a silicone mat. Set aside.
  • Cut cauliflower into bite-sized pieces.
  • Place the cauliflower into a large mixing bowl. Add the salt, pepper, olive oil, and garlic powder. Stir to fully combine.
  • Add the shredded parmesan cheese. Stir again to fully combine.
  • Place the cauliflower onto the prepared baking sheet making sure that the cauliflower is evenly distributed on the baking sheet.
  • Roast the cauliflower at 425 for 30 minutes or until the cauliflower is golden brown. After 20 minutes, stir the cauliflower and then bake for another 10 minutes.
  • Serve immediately.



NOTE:  This recipe can easily be doubled and you can make up to 2 pounds on one sheet pan.  Do not overcrowd the pan more than that.  If using more than 2 pounds cauliflower it's best to use two sheet pans.
NOTE:  This recipe is meant to be super simple!  Add whatever seasonings you like.  Some that we love are Cajun Seasoning, Red Pepper Flakes, Oregano, Lemon Pepper, or a good squeeze of fresh lemon juice.


Calories: 170kcal

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Side Dish
Cuisine: American
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Hey! Nice to meet you! I'm Nichole!

Welcome to The Salty Marshmallow! I'm a mom, animal lover, photographer, & kitchen mess-maker. Here you will find the result of my decades-long passion for chasing the best flavors in the kitchen, all meant to be cooked by regular people with busy lives just like you and me.

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