Perfectly seasoned with the best crispy edges, this Parmesan roasted cauliflower is tossed with plenty of garlic then oven roasted until caramelized. It’s the best side dish to pair with any meal!

Roasted cauliflower on a pan and some on a wooden spoon.

Other roasted vegetable side dishes I love to make include Italian roasted vegetables and roasted zucchini and potatoes!

If you have been skeptical of cauliflower in the past, this Parmesan roasted cauliflower will convert you. Roasting cauliflower in the oven slightly chars the tops, caramelizes the edges and brings out its natural sweetness!

Cauliflower is such a versatile vegetable! I have used it to make creamy cauliflower casserole, cauliflower cheese pie and even cauliflower fritters. Roasting cauliflower is the best way, though, to achieve crusty results!

The seasoned florets are roasted until golden then topped with a savory Parmesan cheese mixture that makes it so delicious! This low carb side dish pairs well with just about anything from steak to chicken or you could even enjoy some for lunch.

Roasted Parmesan Cauliflower Ingredients

Only 7 simple ingredients are needed to make this garlic Parmesan roasted cauliflower!

Cauliflower: You will need one large head of fresh cauliflower or approximately 6 cups of florets. If you purchase pre-cut cauliflower to save time, check the date for freshness.
Olive oil: I like to use extra virgin olive oil.
Salt: Enhances the taste of the cauliflower.
Fresh garlic cloves: Freshly minced garlic tastes best. Alternatively, you could roast unpeeled garlic cloves with the cauliflower, peel when done and toss with the cauliflower.
Parmigiano cheese: Freshly grated parmigiano cheese from a block will taste the best.
Dried parsley: Adds flavor and color to the breadcrumb mixture.
Bread crumbs: Any bread crumbs work, like Panko bread crumbs or your favorite seasoned breadcrumbs.

What is authentic Parmigiano?

Parmigiano Reggiano cheese is authentic or DOP (Denominazione di Origine Protetta which means Protected Designation of Origin), and Parmesan cheese is just an imitation of Parmigiano Reggiano. Reggiano is always made in Italy, while Parmesan can be made anywhere, there are no restrictions on using the name Parmesan. And don’t forget a less expensive but also a DOP choice is Parmigiano Grana Padano.

Variations

Broccoli: The same ingredients for roasted cauliflower with Parmesan work just as well for roasting broccoli!
Spices: Try adding different spices such as paprika or Italian seasoning. Red pepper flakes or chili powder can add a small amount of heat!
Lemon: A squeeze of fresh lemon juice or lemon zest before serving can really brighten the flavors of the oven roasted cauliflower!
Cheese: If you are all out of Parmesan, try another hard cheese such as gouda or gruyere.
Fresh herbs: Add some fresh herbs like parsley, dill or chives before serving this simple side dish for a pop of color and fresh taste.

How to Make Parmesan Roasted Cauliflower

In a large bowl, toss together the cauliflower florets with the olive oil, salt and garlic.

Mixing the cauliflower in a silver bowl.

Place the seasoned cauliflower in a single layer on a prepared parchment lined baking sheet, and roast.

Cauliflower on a baking sheet before and after roasting.

In another small bowl, combine Parmesan cheese, breadcrumbs and dried parsley.

Mixing the parmesan mixture in a silver bowl.

Remove from the oven, add the Parmesan cheese mixture to top of the cauliflower and broil for until golden brown.

The roasted parmesan before and after baked.

Tips for the Best Roasted Cauliflower

Cutting and preparing cauliflower: First chop the cauliflower into florets then cut the florets in half lengthwise. Lay the flat part of the cauliflower pieces on the sheet pan for the best roasted cauliflower.
Don’t overcrowd the baking sheet: Space your florets evenly apart without touching, otherwise your cauliflower will steam and get mushy instead of roast.
Line the pan with parchment paper: Not only will it make your cauliflower crispier, it makes cleanup a breeze!
Use all of the oil: Olive oil will help the cauliflower brown properly. If the florets are too dry, they could burn.
Complete the meal: While the cauliflower roasts, make this Italian herb roasted chicken to complete the meal.

Can I Make This Recipe Gluten-Free?

Yes, just omit the breadcrumbs or use gluten-free breadcrumbs.

Can I Make this Vegan?

While the taste will be slightly different, you can try substituting the Parmesan with nutritional yeast or a vegan Parmesan brand of cheese.

Can I Make This in the Air Fryer?

While I have not tested this cooking method, it should work. After the air fryer has preheated, line it with parchment paper and air fry the cauliflower at 400°F for about 6-7 minutes or until tender. Top with Parmesan mixture and cook for another 2-3 minutes.

More Favorite Cauliflower Recipes

Parmesan roasted cauliflower on a baking sheet.

If you are a lover of cauliflower like we are then I think you will enjoy this Parmesan Roasted Cauliflower. Buon Appetito!