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Roasted purple cauliflower is here to steal the spotlight at your dinner table! Tossed in crispy Parmesan and roasted to golden perfection, this stunning side dish might just outshine the main course. Bonus: it’s ridiculously easy (seriously, 4 ingredients!) and guaranteed to have everyone asking for seconds.

Roasted purple cauliflower with parmesan.
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Prettiest Side Dish…Ever

When life hands you purple cauliflower, you roast it! Well, that’s what I did, and now I’ll never look back. This crispy, golden masterpiece perfectly showcases purple cauliflower’s natural beauty and health benefits.

With only four ingredients, it’s shockingly simple to make but an absolute show-stopper (there’s no need to overcomplicate things, k?). Whether it’s a regular old weeknight or you want to impress guests, this dish fits the bill.

The best part? It’s endlessly customizable. Keep it classic with Parmesan, or shake things up with your favorite spice blend—paprika, garlic powder, or even a hint of chili flakes. Trust me, this purple beauty will be the talk of your dinner table. Let’s cook!

Roasted purple cauliflower with parmesan.

Here’s What You’ll Need

Making the tastiest roasted purple cauliflower side dish doesn’t take much. Jump to the recipe card for exact measurements—this is an overview!

  • Purple Cauliflower: This vibrant veggie has a stunning purple hue and a mild, slightly nutty flavor. Its rich color is due to the presence of anthocyanins—antioxidants known for their health benefits.
  • Olive Oil: Serves as the perfect roasting agent, helping to caramelize the cauliflower while infusing it with a rich flavor. Look for high-quality extra-virgin olive oil for the best results.
  • Salt And Pepper: These essential seasonings enhance the cauliflower.
  • Parmesan: Adds a nutty, savory note, creating the perfect contrast to the sweetness of the roasted purple cauliflower. Be sure to use freshly grated Parmesan for the best texture and flavor (pre-grated cheese contains anti-caking agents that make it difficult to melt).

Selecting Cauliflower

When selecting purple cauliflower, choose heads with firm and compact florets. Avoid any that have signs of wilting or discoloration. If you can’t find purple cauliflower, you can still make this recipe using regular white cauliflower!

Purple cauliflower slices on a white background.
I like to cut larger cauliflower “steaks” to showcase that gorgeous color!

Making Roasted Purple Cauliflower Is Easy

We’re keeping things nice and simple here with just three steps! (Jump to the recipe card for the full printable instructions.)

Step 1: Prep Everything
Preheat the oven to 425°F (218°C). Cut the cauliflower into 1-inch slabs or bite-sized florets.

Step 2: Cook the Cauliflower
Place the pieces on a parchment-lined baking sheet, which helps prevent sticking and makes cleanup a breeze. Drizzle olive oil, then sprinkle with salt and pepper. Roast the cauliflower just until it begins to brown.

Step 3: Cheese Finale
It’s time to add the cheesy finishing touch to your roasted purple cauliflower. Take the baking sheet out of the oven and evenly sprinkle the freshly grated Parmesan cheese over the cauliflower. Return the baking sheet to the oven for a few minutes.

Roasted purple cauliflower with parmesan.
You’ll know it’s done when the cheese is slightly browned and crispy.

Recipe Tips

Don’t Crowd the Pan: Arrange the florets in a single layer with a bit of space between them. Overcrowding traps steam, leaving your cauliflower soft instead of that crispness we’re going for.

Add Extra Crunch: You can toss in a handful of panko with the Parmesan for a little extra texture! Drizzle the breadcrumbs lightly with olive oil to help them crisp up.

Mix Up The Spices: Try any combination of garlic powder, cumin, turmeric, lemon zest, lemon pepper seasoning, chili flakes, or Italian seasoning mix.

Sarah’s Tip

My latest obsession is smashed cauliflower! Smashing it before baking makes it extra crispy. Try it with this roasted purple cauliflower!

Roasted purple cauliflower with parmesan.

Crazy For Cauliflower?

Roasted purple cauliflower with parmesan.

Parmesan Roasted Purple Cauliflower

5 from 1 rating
Prep: 5 minutes
Cook: 20 minutes
Total: 25 minutes
Servings: 4 servings
Roasted purple cauliflower is here to steal the spotlight at your dinner table! Tossed in crispy Parmesan and roasted to golden perfection, this stunning side dish might just outshine the main course. Bonus: it’s ridiculously easy (seriously, 4 ingredients!) and guaranteed to have everyone asking for seconds.

Ingredients 

  • 1 head purple cauliflower
  • 2 to 4 Tbsp olive oil, 30 to 60 mL
  • ½ tsp each salt and pepper
  • ½ cup freshly grated Parmesan cheese, 40 g
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Instructions 

  • Prep: Preheat oven to 425°F (218°C). Cut the cauliflower into 1-inch slabs or bite-sized florets (or both).
    Purple cauliflower slices on a white background.
  • Cook: Transfer the cauliflower to a parchment-lined baking sheet. Drizzle oil, salt, and pepper on top, then toss to coat evenly. Cook on the lower rack of the oven for 10 to 15 minutes until the cauliflower is just beginning to brown on the edges.
    Roasted purple cauliflower on a pan.
  • Cheese: Remove the tray from the oven. Sprinkle cheese evenly over the cauliflower. Return the tray to the oven and continue cooking for 5 to 10 minutes until the cheese is a bit browned and crispy. Serve hot.
    Roasted purple cauliflower with parmesan.

Notes

Can I use regular cauliflower instead? Yes, you can use regular cauliflower if you can’t find purple cauliflower. The recipe will still work perfectly with white cauliflower.
Can I use other cheeses instead of Parmesan? Absolutely! While Parmesan cheese adds a delightful nutty flavor, you can experiment with cheddar, Gouda, or feta to create different taste profiles.
Can I add other seasonings or herbs to the cauliflower? Absolutely! Feel free to experiment with additional seasonings or fresh herbs like rosemary, thyme, or garlic powder.

Nutrition

Serving: 1serving | Calories: 99kcal | Carbohydrates: 1.4g | Protein: 3.9g | Fat: 9.3g | Saturated Fat: 2.5g | Cholesterol: 8mg | Sodium: 394mg | Potassium: 0mg | Fiber: 0.5g | Sugar: 0.5g | Calcium: 99mg | Iron: 0mg

Nutrition information calculated by Sarah Bond, degreed nutritionist.

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