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    Home » Recipes » Course » Side Dish

    Oven Roasted Cauliflower Parmesan

    Published: Jan 12, 2021 || Last updated: Sep 1, 2022 by Farrukh Aziz

    130 shares
    Jump to Recipe

    This beautiful Oven Roasted Cauliflower Parmesan is as pretty as it is delicious. Serve this multicolored vegetable side dish with any meal to brighten your plate and your palate.

    This vibrant orange and purple cauliflower recipe is tossed with garlic, olive oil, and bright lemon and then finished with nutty parmesan, crunchy walnuts and fresh parsley.

    Overhead shot of oven roasted cauliflower parmesan on a white plate garnished with lemon slices

    Jump to:
    • Why You Will Love This Recipe
    • Ingredients and Substitutions
    • How to make Roasted Cauliflower Parmesan
    • Frequently Asked Questions
    • Storing and Freezing
    • Serving Ideas
    • Here's more vegetable inspiration for you
    • 📖 Recipe

    If you weren't yet aware, cauliflower comes in multiple hues. While the flavor profile of these colored cauliflower varieties is the same nutty, starchy taste you are used to, the colors themselves are nearly magical.

    Purple cauliflower gets its vibrant color from a type of compound called anthocyanin which is naturally occurring in purple cabbage. This compound has been said to be associated with lower risk of diabetes and heart disease, as well as improved eye and brain function.

    Orange cauliflower gets its sunshine inspired color from an extra dose of beta-carotene, which also boosts the vitamin A content to more than 125% of white cauliflower. Talk about nutritious!

    Why You Will Love This Recipe

    Aside from the added health benefits we mentioned above, this lip-smacking oven roasted cauliflower recipe is striking on a plate. If it is true that we eat with our eyes first, this orange and purple cauliflower parmesan is extra fulfilling.

    Just be honest - have you ever seen such a pretty cauliflower dish? I didn't think so!

    As an added bonus, this oven roasted cauliflower recipe is easy to make and just as easy to adapt. If you are unable to find vibrantly colored cauliflower, you can just as easily swap in regular cauliflower or romanesco (a.k.a. broccoflower) too.

    As if you needed more reasons to make this yummy veg side, it also happens to be low carb, keto friendly AND gluten free. The bright, sharp flavors of garlic, lemon and parmesan are perfectly suited to cauliflower's natural flavors and are healthy to boot.

    Once you try this delicious cauliflower parmesan recipe, you'll be finding any excuse possible to make it. Serve it as a salad, side or snack on any day of the year!

    This rainbow colored dish will be right at home on any celebration table, but is easy enough to make on a random Tuesday.

    close up shot of orange and purple roasted cauliflower parmesan on a sheet pan with walnuts

    Ingredients and Substitutions

    Cauliflower : The star of this vegetable dish is obviously cauliflower. While I love using both orange and purple cauliflower for a stunning visual presentation, you can feel free to substitute whatever type of cauliflower you have available. I promise it will still be yummy!!

    Parmesan Cheese : Parmesan is another key component of this dish, as the name "cauliflower parmesan" implies. The hard cheese imparts a bit of salty-creamy-umami deliciousness to the dish that plays beautifully against the flavors of the cauliflower.

    If you are a practicing vegetarian, be sure to opt for vegetarian parmesan. There are also vegan Parmesan options on the market now in the event that you are following Paleo, Whole30 or plant-based diets.

    Flavorings : The remaining ingredients for this colored cauliflower recipe are quite simple. Olive oil, salt and pepper are pretty much a given for any kind of roasted veggies.

    Garlic, lemon juice, lemon zest, parsley and red pepper flakes give this dish a Mediterranean flavor that is zippy enough to stand up to just about any meal.

    How to make Roasted Cauliflower Parmesan

    This orange and purple cauliflower recipe may look gorgeous, but I assure you it is quite simple to make. First, prepare your cauliflower. Using a sharp knife, cut it into thin slices.

    TIP: To get the most caramelization possible, make your slices even and flat. The more surface area that is touching the roasting pan, the more golden deliciousness will happen!

    hand slicing ½" slices of orange and purple cauliflower florets on a wooden cutting board

    Next, prepare your dressing. Simply stir together the olive oil, lemon juice and zest, red pepper flakes, salt and pepper in a small bowl. You're almost done!

    hands mixing together the olive oil, garlic and red pepper flakes dressing in a small bowl

    Spread the cauliflower out on a sheet pan in a single layer. Toss together your cauliflower and prepared dressing.

    TIP: Want to make life even easier? Line your sheet pan with parchment to make clean up a snap!

    orange and purple cauliflower floret slices on a sheet pan drizzled with red pepper and garlic dressing

    Pop the sheet tray into a preheated 425F oven. Roast for 15 minutes.

    TIP: For best results, let your oven preheat for 10 minutes past the beep. This will ensure a nice, toasty place for your sheet pan to get hot quickly.

    colored cauliflower florets after first bout of roasting topped with lemon slices, parmesan, parsley and walnuts

    Remove the sheet pan from the oven. Flip the cauliflower pieces over to allow the opposite side to caramelize. Sprinkle with the walnuts, parmesan and parsley. Scatter thin slices of lemon across the top.

    Return to the oven for another 10 minutes, until the edges of the cauliflower are golden and crispy. Serve immediately. Enjoy!

    completed oven roasted cauliflower parmesan on a sheet pan

    Frequently Asked Questions

    Is purple cauliflower safe to eat?

    Absolutely! While the color is extremely vibrant and may appear dyed, it is completely natural.
    The bright color comes from the same type of compound that gives red cabbage its hue, and has been linked to some pretty incredible health benefits.

    Where can I buy colored cauliflower from?

    I was able to find the orange and purple cauliflower from my local grocer. You may also find luck at the farmer's market.
    If you are unable to find orange or purple cauliflower, white cauliflower or green "broccoflower" will also work.

    Can I make this recipe using white cauliflower?

    You certainly can. While I love the flourish of color that orange and purple cauliflower offer, this recipe will taste just as yummy using plain white cauliflower instead.

    Can I make it vegan, paleo and Whole30 compliant?

    Of course! Simply use vegan parmesan cheese instead of dairy parmesan.

    Can I prepare this dish ahead of time?

    This cauliflower parmesan recipe honestly tastes best straight from the oven.
    If you are wanting to make life easier on yourself, you can absolutely prepare the dressing and the cauliflower ahead of time. That way, you can toss everything together on the pan in a flash!

    That said, the leftovers for this dish are still tasty. They should last in the refrigerator for up to three days or in the freezer for up to three months.

    I have a nut allergy. Do you have any suggestions?

    The easiest solution would be to simply omit the walnuts from the final dish. You can also opt to substitute some toasted pumpkin seeds if you prefer. I also happen to love this seed crunch recipe as well.

    Storing and Freezing

    While this orange and purple cauliflower recipe tastes best fresh from the oven, you can refrigerate the leftovers for up to 3 days. It will also last for up to three months in the freezer if properly sealed.

    To reheat, simply thaw overnight in the refrigerator. When you are ready to eat, reheat in the oven for 10-15 minutes and then serve.

    Serving Ideas

    I love the versatility of this oven roasted colored cauliflower parmesan. Some days, I'll serve it as a big salad all by itself. Sometimes I make it as a snack.

    It is also a delightful side that goes well with just about everything. Try it with chicken, lamb, fish or tofu!

    Here's more vegetable inspiration for you

    • Instant Pot Cauliflower Soup
    • Gobhi Achaari
    • Arugula Apple Pear Pomegranate Fall Salad
    • Roasted Sweet and Savory Butternut Squash
    • Sautéed Broccolini with Garlic Butter
    • Oven Roasted Sweet Potatoes

    If you tried this delicious, multicolored Oven Roasted Cauliflower Parmesan recipe, please let me know how it turned out! I love seeing your ratings and reading your reviews.

    If you'd like more tasty recipes delivered straight to your inbox, you can sign up for my email newsletter, I promise to never spam you! You can also see what I'm up to in the kitchen by following me on  Pinterest, Instagram or Facebook.

    📖 Recipe

    Overhead shot of oven roasted cauliflower parmesan on a white plate garnished with lemon slices
    4.66 from 20 votes
    Print

    Oven Roasted Cauliflower with Parmesan

    This beautiful roasted orange and purple cauliflower with parmesan is as pretty as it is delicious. Serve this multicolored vegetable side dish with any meal to brighten your plate and your palate.
    Course Salad, Side Dish
    Cuisine American
    Diet Low Carb
    Prep Time 10 minutes
    Cook Time 25 minutes
    Servings 4
    Calories 235kcal
    Author Farrukh Aziz

    Ingredients
     

    • 1 Large Cauliflower (Purple Orange or White) (cut into florets)
    • ¼ cup Olive Oil
    • ¾ teaspoon Red Chili Flakes (optional)
    • 5 Garlic (minced)
    • 1.5 teaspoon Lemon Zest
    • 1 tablespoon Lemon Juice
    • Salt and Pepper to taste
    • ¼ cup Walnut (roughly chopped)
    • ¼ cup Parmesan Cheese
    • Chopped Parsley
    • 4-5 Lemon Slices
    Prevent your screen from going dark

    Instructions

    • To start with, pre heat the oven at 425° F (220° C) / 400° F (200° C) fan.
    • Using sharp knife, cut the florets into ½ inch slices with maximum flat edges. Set it aside.
    • In a bowl, combine olive oil, pepper flakes, garlic, lemon zest and juice and salt and pepper.
    • Place the cut cauliflower florets on baking sheet in a single layer and drizzle the prepared dressing.
    • Bake it in the oven for 15 minutes.
    • You can flip the florets here. Sprinkle chopped walnuts, grated parmesan cheese, chopped parsley and top the lemon slices.
    • Pop it back in the oven and bake for another 10 minutes until crisp golden edges.
    • Serve immediately.

    Notes

    Feel free to use white cauliflower instead of orange and purple cauliflower here.
    Go for vegan parmesan to make this recipe vegan, paleo and Whole30 compliant.
    Store the leftovers (if any) in a clean airtight box for up to 3 days in the refrigerator. The frozen will last in the freezer up to 3 months.

    Nutrition

    Calories: 235kcal | Carbohydrates: 10g | Protein: 6g | Fat: 20g | Saturated Fat: 3g | Cholesterol: 4mg | Sodium: 144mg | Potassium: 477mg | Fiber: 4g | Sugar: 3g | Vitamin A: 49IU | Vitamin C: 75mg | Calcium: 123mg | Iron: 1mg
    Tried this recipe?Tag @cubesnjuliennes on Instagram and hashtag it #cubesnjuliennes!
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    Reader Interactions

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      Recipe Rating




    1. Silvia Martinez

      May 16, 2021 at 11:59 pm

      5 stars
      What a delicious way to eat cauliflower! Yes, I knew cauliflower comes in several colors, I love their vibrant colors. This is a yummy and oh so easy recipe.

      Reply
    2. Adriana

      May 16, 2021 at 1:29 pm

      5 stars
      This is the only way I eat my cauliflower; roasting makes a difference in the flavor, plus the spices and the citrus give it a beautiful aroma too.

      Reply
    3. kushigalu

      May 16, 2021 at 6:16 am

      5 stars
      This is one of the best oven roasted cauliflower I have seen. Your pictures are amazing. Thanks for sharing this recipe

      Reply
    4. FOODHEAL

      May 15, 2021 at 3:07 pm

      This cauliflower makes me long for summer when colored cauliflowers will back in the farmer's market!
      I love the purple color of this cauliflower, It looks elegant and delicious.

      Reply
    5. Kari Heron

      May 15, 2021 at 12:32 pm

      5 stars
      I love the two different varieties of cauliflower you used for the contrast i colour and all the flavours you bring out by roasting and seasoning so well! Perfectly healthy side dish! Shukran! By the way, some weeks ago I featured your work in one of my Pinterest stories, encouraging others to follow your work because i had just discovered you.

      Reply
    6. Eva

      May 14, 2021 at 12:19 pm

      5 stars
      This is absolutely pretty! I have seen coloured cauliflower very rarely, unfortunately it's not a common thing to come across here. But I will certainly buy those next time they're on sale at my local supermarket and make this recipe, because the appearance really does play a big part here!

      Reply
    7. Sandhya Ramakrishnan

      May 12, 2021 at 5:06 pm

      5 stars
      I love how you have used both the regular and purple cauliflower to make the roasted cauliflower recipe. I have to try it this way. I have never roasted the colored cauliflower before.

      Reply
    8. Marisa F. Stewart

      May 12, 2021 at 9:25 am

      5 stars
      As many times as I go to the grocery store I've really never paid too much attention to cauliflower and its variations. I loved the looks of your vegetable creation so I decided to try it. It looked and tasted fabulous with our grilled chicken. This is going to be our cauliflower favorite. Thank you!! See! You can teach old dogs new tricks.

      Reply
    9. Allyssa

      May 12, 2021 at 6:51 am

      5 stars
      Thanks a lot for this idea! Loved it and so excited to make it again! It's delicious!

      Reply

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    I am Farrukh, the face behind this beautiful recipe blog Cubes N Juliennes. I am a microbiologist by qualification turned into a Food enthusiast... Know more about me ->

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