Skip to main content

Cooking with cauliflower has its options; to boil, puree, sauté, turn into rice (try our Curry Cauliflower Fried Rice with Roasted Chickpeas), or grill? Although there are several ways to utilize this super vegetable, one of the heartiest and most delicious ways to cook it is to crank up the oven and roast away. Here’s how to roast cauliflower perfectly every time.

Buying Fresh Cauliflower

While I love using frozen florets of cauliflower to thicken smoothies and soups, using fresh cauliflower works best when roasting. The good news is that fresh cauliflower is readily available year round.

When purchasing cauliflower at the grocery store or farmers market, look for firm heads of cauliflower with crisp outer leaves. Small brown speckles on the florets and wilted outer leaves usually signify that the cauliflower is old. Once purchased, cauliflower will keep in the refrigerator for three to five days in the vegetable crisper.

fresh cauliflower head, how to roast cauliflower

Head of cauliflower.

If you’re on a tight food budget, you can choose to skip the organic cauliflower. According to the Environmental Working Group's (EWG) Dirty Dozen and Clean Fifteen list, cauliflower ranks low on the list for pesticide contamination.

Shopping organic is great for so many reasons (protecting the environment, farmers' health, reduced pesticide exposure, preventing disease, to name a few), don’t feel guilty about buying conventional cauliflower when organic isn't available. (Save your pennies for organic strawberries – the number one pesticide ridden fruit according to the EWG.)

Although the typical creamy colored cauliflower is commonplace, this vegetable comes in other bright colors as well. Look for purple cauliflower, which gets its vivid color from the same anthocyanin antioxidants found in cabbage and red wine. And there's orange cauliflower, which boasts more vitamin A and beta-carotene than its white counterpart.

Of course, all cauliflower (no matter the color) is a healthy choice. Cauliflower packs a nutritious punch and is rich in fiber, potassium, magnesium vitamins C, and phosphorus. Like other super healthy Brassica family members (kale, Brussels sprouts, cabbage, broccoli), cauliflower contains natural antioxidants, such as phenolic compounds and phytochemicals, known to reduce free radical damage, inflammation, and may even help to prevent certain diseases, such as cancer.

Roast cauliflower florets on a sheet pan with fresh parsley.

Roast cauliflower florets.

Roasted Cauliflower Cooking Prep

Before roasting the cauliflower, give it a good wash to remove any dirt, pesticides, or debris. I like to do this by first cutting the cauliflower into similar-sized florets and then placing in a colander in the sink to rinse every nook and cranny.

There are a few important things to keep in mind to make sure your cauliflower gets roasted to crispy, creamy perfection. First, grab a baking tray large enough for the cauliflower to sit in a single layer. Overcrowding the baking tray will result in mushy and not evenly cooked cauliflower.

Choosing a proper cooking fat ensures roasted cauliflower goodness. The two I recommend are avocado oil and grass-fed ghee, both of which can tolerate high-heat cooking. Unlike olive oil or coconut oil, avocado oil and ghee both have very high smoke points, of 450 degrees Fahrenheit and upward.

When fats hit their smoke-point, they also become damaged. These damaged compounds include lipid peroxides and aldehydes, both of which can contribute to inflammation and even cancer.

Using ghee and avocado oil in your high-heat cooking not only ensures a healthy cooking fat medium, but delivers tasty nutrition, too. Avocado oil has a buttery taste and is filled with the same healthy fats found in avocado. Ghee, or clarified butter, has a nutty flavor and is a rich source of short-chain and medium-chain triglycerides along with butyrate, a type of fatty acid associated with gut health. When drizzled over cauliflower, ghee and avocado oil make the roasted end product that much more delicious.

Pro Chef Tips

Serving and pairing your roasted cauliflower with dinner has endless possibilities. Amanda Hesser of the New York Times notes “Roasted cauliflower can be served warm or at room temperature” she says. To serve, “It can be part of an antipasto of roasted vegetables. Or an accompaniment to a roast chicken or lamb. And though they aren't obvious choices, scallops and lobster, both naturally sweet themselves, are delicious with roasted cauliflower.”

Kate Taylor, the food blogger of Cookie and Kate, notes cauliflower can also be used to "add bulk and tasty roasted flavor to other veggie dishes, like lentil tacos and farro salad."

Says Taylor, "It’s neutral enough that it doesn’t overwhelm other flavors, so it goes well with a variety of cuisines.” Whether you're adding roasted cauliflower to another flavorful dish or just munching on it straight from the oven, (guilty) this roasted cauliflower recipe is sure to be one of your favorites.

Gently browned and roasted cauliflower on a sheet pan to serve with your favorite dinner, how to roast cauliflower
  • Duration
  • Cook Time
  • Prep Time
  • 73 gServings


  • 1 head of cauliflower
  • 2 Tbsp ghee or avocado oil
  • 1/2 tsp sea salt
  • Freshly ground black pepper


  1. Preheat oven to 425 degrees Fahrenheit and line a large baking tray with parchment paper.
  2. Wash and chop cauliflower into evenly sized florets. Add to baking tray and drizzle with ghee or avocado oil.
  3. Sprinkle with sea salt and freshly ground black pepper to taste.
  4. Roast for 20 minutes.
  5. Remove cauliflower from oven and give a good stir. Roast for five to seven minutes more, or until evenly charred to your liking.
  6. Remove from oven and stir. Garnish with chopped parsley, if desired.
Publish date:

Related Recipes

cauliflower rice

Curry Cauliflower Fried Rice with Roasted Chickpeas [Plant-Based + Gluten-Free]

This curry cauliflower fried rice recipe is lower in carbohydrates, plant-based, and filled with flavorful curry spices and can be on the table in 30 minutes.

roasted beets

How to Make Delicious Roasted Beets

The trick to making beets delicious? Roast them! You'll want to add these gorgeous roasted gems to every meal -- or eat them straight from the tray!

roasted carrots

Delicious Whole Roasted Carrots are the Prettiest Side Dish Ever

How to make nutritious and simply delicious roasted carrots -- with just 30 minutes and a handful of pantry staples. Easiest side dish ever.

roasted sweet potatoes

How To Perfectly Roast Sweet Potatoes

Sweet potatoes are nutritious root vegetables that are easy to prepare and enjoy. These roasted sweet potatoes are so delicious you'll eat the whole batch.

Healthy and delicious cauliflower hot wings on parchment paper.

These Cauliflower Hot Wings Are the Ultimate Healthy Game Day

Add some plants to your game day eats – these cauliflower hot wings are seriously delicious.

root vegetable fries

Root Vegetable Fries: A Seasonal Twist on the Classic Side

Stock up on a variety of seasonal root vegetables at the farmers market and turn them into a healthier version of the classic: root vegetable fries.