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    Home > Meal Type > Sides

    Roasted Cauliflower with Rosemary and Red Onions

    Last Updated: Jun 28, 2025 · First Published: Aug 10, 2015
    Author: Claire | Sprinkles and Sprouts · Made it? 2 Comments

    Jump to Recipe SaveSaved!
    3 from 1 vote

    I think we all know I love roasting veg. But if you didn't you do now! Roasting veg is great (See told you I loved it!!) It is easy, makes veg taste amazing and if you line the tins there is zero washing up. Now that is a win win win situation. Roasting just works! Think about the sweet Mediterranean vegetables: capsicum, onions and zucchini. Or the warming and wintery pumpkin, carrot and potato. They are all perfect when roasted slowly in the oven with some olive oil and little more than salt and pepper.

    Roasted Rosemary Cauliflower. A simple, delicious and versatile side dish. This roasted cauliflower is perfect with a roast or with a pan fried steak.

    Today though I am following on from my roasted broccoli and sharing roasted cauliflower. I actually don't like cauliflower, I hated having to eat it as a kid and it the one vegetable that I avoid cooking now as an adult. But when cauliflower is roasted it takes on a totally new identity. The harsh sulphur tastes vanishes and you get a much sweeter and nuttier taste.

    Roasted Rosemary Cauliflower. A simple, delicious and versatile side dish. This roasted cauliflower is perfect with a roast or with a pan fried steak.

    Isn't it beautiful!

    Of course I can't help but throw in some wonderful red onions because we all know that roasted onions make everything better. Sweet, juicy and just yummy! And then there is the smell of rosemary roasting. Get a steak in the pan, cook it for the merest of minutes to your liking, add a knob of butter and serve up an elegant, simple and beautiful Monday night dinner.

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    Roasted Rosemary Cauliflower. A simple, delicious and versatile side dish. This roasted cauliflower is perfect with a roast or with a pan fried steak.

    If you want more roasty toasty veg dishes then check these recipes out:

    Balsamic onion and beetroot bake. A deliciously and naturally sweet side dish that is perfect for serving with grilled meats.Roasted Green Beans with Parmesan and Rosemary. A great side dish, the beans are tender but crisp and the parmesan and rosemary marry amazingly together.

    Roasted Broccoli. A delicious ad different way to eat broccoli. Once you eat it roasted you will never go back!Moroccan Spiced Carrots. A sweet, earthy, spicy side dish. Or add them to a salad and make them the vegetarian hero. Delicious, healthy and totally yum!

    Get the Recipe

    Roasted Rosemary Cauliflower

    Claire | Sprinkle and Sprouts
    Roasted Rosemary Cauliflower. A simple, delicious and versatile side dish. This roasted cauliflower is perfect with a roast or with a pan fried steak.
    3 from 1 vote
    Print Recipe
    Prep Time 5 minutes mins
    Cook Time 25 minutes mins
    Total Time 30 minutes mins
    Servings 4
    Calories 120 kcal

    Ingredients
      

    • 1 large head cauliflower
    • 2 red onions
    • 2 tablespoon olive oil
    • 2 teaspoon chopped fresh rosemary
    • salt and pepper

    Instructions
     

    • Heat oven to 220ºC/200ºC fan forced/Gas mark 7.
    • Break the cauliflower into small florets and place in a roasting tin,
    • Slice the onion into thick wedges and nestle it about amongst the cauliflower.
    • Drizzle over the olive oil then sprinkle over the rosemary.
    • Season generously with salt and cracked black pepper.
    • Roast for 25 mins until the cauliflower is starting to colour.
    Tried this recipe?Let us know how it was!

    Nutrition

    Calories: 120kcal | Carbohydrates: 12g | Protein: 3g | Fat: 7g | Saturated Fat: 1g | Sodium: 45mg | Potassium: 510mg | Fiber: 3g | Sugar: 5g | Vitamin C: 73.3mg | Calcium: 44mg | Iron: 0.7mg

    Nutrition is per serving

    For more great recipes follow me on PinterestFollow @sprinklessprout

    Roasted Rosemary Cauliflower. A simple, delicious and versatile side dish. This roasted cauliflower is perfect with a roast or with a pan fried steak.

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    Comments

    1. Meg @ NomingthruLife says

      August 13, 2015 at 1:30 pm

      Yummmmm! I love roasted cauliflower and also just how simple and delicious your dish is. 🙂

      Reply
      • Claire McEwen says

        August 14, 2015 at 12:34 pm

        Thank you. Simple and delicious is the perfect description 🙂

        Reply
    3 from 1 vote (1 rating without comment)

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    a lady slurping pasta from a fork while holding a rustic bowl

    I'm Claire and I love food!!


    I dream about food and I am happiest when I am in the kitchen cooking. Whether that is dinner for my family, snacks for drinks with my girlfriends or testing new recipes for my site, the kitchen is my happy place. Sprinkles and Sprouts is where I share it all and I am so happy you are here.

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