Roasted Spicy Cauliflower is an easy low-carb recipe where cauliflower is roasted with olive oil, spicy red pepper flakes, salt, and pepper. And everyone who likes roasted cauliflower and spicy flavors is going to swoon over this easy recipe with only 3 net carbs per serving!

Click here to PIN Roasted Spicy Cauliflower!

Roasted Spicy Cauliflower on serving plate

When I updated the recipe for Roasted Cauliflower with Parmesan it reminded me how simple and delicious roasted cauliflower is. And it’s obvious that I’m a roasted cauliflower fan, because I have a lot of variations of roasted cauliflower on my blog.

The  original recipe for this Roasted Spicy Cauliflower simply called for red pepper flakes. I had a few different types in my pantry, but I was excited to use the Aleppo Pepper that Burcu from Almost Turkish Recipes sent me as a gift years ago when we were doing a blog event together. And now Aleppo Pepper is something I always have on hand. I hope you’ll try this roasted spicy cauliflower dish, but use any spicy red pepper flakes you prefer if you don’t hav Aleppo Pepper.

This spicy cauliflower is a recipe that got popular on Pinterest a few years back, so I decided to update the original photos that I felt didn’t really show off how tasty it was. If you like the idea of spicy roasted cauliflower, this might become one of your favorite ways to cook it; I hope you will try the recipe!

What is Aleppo Pepper?

Burcu described Aleppo Pepper as Turkish flaked hot red pepper and said “You can use this semi moist, delicious smelling, hot, flaked red pepper while cooking or sprinkle it on your foods.” I loved the Aleppo pepper and found it to be seriously addicting. Now flash forward quite a few years and I went to Turkey where I stocked up on Aleppo Pepper. You can also buy Aleppo Pepper from (affiliate link), but use any type of spicy red pepper flakes you prefer.

What ingredients do you need for this recipe?

(This is only a list of ingredients; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

  • large head cauliflower
  • Olive Oil (affiliate link)
  • red pepper flakes; I would use Aleppo Pepper (affiliate link) but use any red pepper you have
  • salt
  • fresh ground black pepper to taste

How spicy is the Roasted Spicy Cauliflower?

This recipe calls for one teaspoon of red pepper flakes, which is enough to make it moderately spicy. If you’re not sure how much spiciness you want, you can use less and add more red pepper at the table.

Want more ideas for roasted cauliflower?

Check out my collection of Low-Carb and Keto Roasted Cauliflower Recipes for more tasty recipes like this one.

Roasted Spicy Cauliflower how-to-collage showing recipe steps.

How to Make Roasted Spicy Cauliflower:

(This is only a summary of the steps for the recipe; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

  1. Cut up a large head of cauliflower and toss with olive oil, red pepper flakes, salt, and pepper.
  2. Spread out on baking sheet and roast at 400F/200C until it’s softened to your liking and golden brown.
  3. Serve hot. That’s all there is to this easy recipe, but the flavor is really a WOW!
  4. And I think Roasted Spicy Cauliflower is a delicious side dish that’s good any time of year!

Roasted Spicy Cauliflower on serving plate with black-shite fork

More Tasty Cauliflower:

Roasted Spicy Cauliflower on serving plate
Yield: 4 servings

Roasted Spicy Cauliflower

Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes

Low-Carb Roasted Spicy Cauliflower is a delicious and easy way to cook cauliflower. If you like roasted cauliflower and enjoy spicy flavors, you're going to love this recipe.


  • 1 large head cauliflower, cored and cut into florets
  • 2 T extra-virgin olive oil
  • 1 tsp. red pepper flakes, or a little more if you want it extra spicy (see notes)
  • pinch of salt
  • fresh ground black pepper to taste


  1. Preheat oven to 400F/200C.
  2. Placed cut up cauliflower, olive oil, red pepper flakes, salt, and pepper into mixing bowl and stir well to combine and coat cauliflower with oil and red pepper.
  3. Arrange the cauliflower in a single layer on a heavy baking sheet or baking dish.
  4. Roast until cauliflower is softened to your preference and starting to get golden brown, about 25-30 minutes.
  5. Serve hot.


You can buy Aleppo pepper at (affiliate link) or use other hot pepper flakes you have on hand.

This recipe is from The South Beach Diet Quick and Easy Cookbook; I actually made it just as the recipe is written with the change of using Aleppo Pepper.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 111Total Fat: 8gSaturated Fat: 1gUnsaturated Fat: 6gCholesterol: 0mgSodium: 65mgCarbohydrates: 8gFiber: 5gSugar: 4gProtein: 4g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

Did you make this recipe?

Did you make this recipe? Please leave a star rating (under the PRINT button in the recipe) or share a photo of your results on Instagram! THANKS!

Square image for Roasted Spicy Cauliflower shown on serving plate with decorative serving spoon.

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Roasted Spicy Cauliflower is a perfect side dish for any low-carb or Keto eating plan as well as for any phase of the original South Beach Diet. And it’s also gluten-free, dairy-free and vegan, so you can make this for anyone who likes cauliflower!

Find More Recipes Like This One:
Use Side Dishes to find more recipes like this one. Use the Diet Type Index to find recipes suitable for a specific eating plan. You might also like to follow Kalyn’s Kitchen on Pinterest, on Facebook, on Instagram, on TikTok, or on YouTube to see all the good recipes I’m sharing there.

Historical Notes for this Recipe:
This recipe was posted in 2007! It was updated with new photos in 2016 and was last updated with more information in 2023.


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