Broccoli and Cauliflower Cheese

No roast dinner is complete without a Broccoli and Cauliflower Cheese bake. This is the easiest, cheesiest & most darn right delicious side dish you’ll ever make!

You guys, I think my love for cheese just gets out of control this time of year. It was only the other day I uploaded my Spicy Bacon Mac and Cheese and now this… I’m just working on my winter bod okay 😅 but seriously who can resist cheese when it looks this good!?

Broccoli and Cauliflower Cheese fresh out the oven

Cauliflower cheese was a staple in my house growing up, especially as a side dish for roast dinners and especially around the festive season.

If I’m honest back then it was the only way I’d eat cauliflower, but on reflection is there realistically anything you wouldn’t eat if an entire block of cheddar was melted on top?

So, what makes this the best cauliflower cheese recipe?

Well firstly there’s broccoli, and we all love broccoli. Even if only when smothered in melted cheese.

Secondly, and this is my absolute game-changing step, pre-roasting the broccoli and cauliflower.

Yup, no boiling, no steaming, just good old fashioned roasting.

Why roast the broccoli and cauliflower?

  • Flavour – Roasting the broccoli and cauliflower in garlic, olive oil and S+P gives so much flavour that boiling just can’t provide. Broccoli and cauliflower are the hero ingredients of this dish so to me it makes no sense to add them into the sauce unseasoned.
  • Texture – When you boil or steam the broccoli and cauliflower it holds on to a lot of water (especially in the broccoli) and it’s released when you bake in the oven. And we all know cheese + water = a hot mess. When you roast them you also get a nice crispy crunchy texture which beats sloppy veg any day!

How to make Broccoli and Cauliflower Cheese - step by step

How to make broccoli and cauliflower cheese

  1. Roast the broccoli and cauliflower in a baking dish until lightly charred and fork tender.
  2. Meanwhile melt butter into a suitably sized pan.
  3. Stir in flour then gradually pour in milk.
  4. Add cheese, nutmeg and seasoning.
  5. Add in your roasted broccoli and cauliflower.

Add then it’s just a case of popping it back in the dish and pouring over enough cheese to last a lifetime.

Oven time!

Baked Broccoli and Cauliflower Cheese - pre oven

Alrighty, by this point your house is going to smell insanely gorgeous.

Once it’s out the oven I like to firstly shed a tear because I love cheese so much, then let it sit for 5 mins (and consequently shed a few more tears). This will let it firm up a little and possibly save you burning your mouth into oblivion). Then grab some fresh chives and sprinkle those bad boys over.

My mouth is watering all over again.

Hey, whilst you’re here check out my other festive recipes!

Roasted Broccoli and Cauliflower Cheese - fresh out the oven

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How to make Broccoli and Cauliflower Cheese (Full Recipe & Video)

5 from 5 votes
Cauliflower and Broccoli Cheese
Prep Time
10 mins
Cook Time
40 mins
Total Time
50 mins

No roast dinner is complete without a Broccoli and Cauliflower Cheese bake. This is the easiest, cheesiest & most darn right delicious side dish you'll ever make!

Course: Side Dish
Cuisine: British
Keyword: Broccoli and Cauliflower Cheese
Servings: 6
Calories: 301 kcal
Author: Chris
  • 200g / 7oz Broccoli florets
  • 200g / 7oz Cauliflower florets
  • 500ml / 2 cups Milk, at room temp
  • 1.5 cups / 150g Cheddar, grated (save 1/3 for topping)
  • 1 cup / 100g Gruyere, grated
  • 2 tbsp Flour
  • 2 tbsp Unsalted Butter
  • 1 tbsp Dijon Mustard
  • 1 tsp Garlic, minced
  • few pinches of Nutmeg
  • Salt & Black Pepper, to taste
  • Olive Oil
  • Fresh Chives, to garnish
  1. Pop your broccoli, cauliflower and garlic in a roasting dish with a good pinch of salt & pepper and a drizzle of olive oil. Roast in the oven at 200c/390f for 15-20mins or until lightly charred and fork tender.

  2. Meanwhile, melt your butter into a suitable sized pan and stir in your flour to form a paste. Gradually pour in your milk, continually whisking to avoid lumps forming.

  3. Stir in your mustard gruyere and 2/3 of your cheddar. Test for seasoning then add in your broccoli and cauliflower.

  4. Pop back into the roasting dish, sprinkle over the rest of your cheddar and pop back in the oven for 20mins or until golden and bubbly. Sprinkle with finely chopped chives.

Watch how to make it!

Recipe Notes

a) Calories - Based on using 1 tbsp olive oil and shared between 6 people.

Nutrition Facts
Cauliflower and Broccoli Cheese
Amount Per Serving
Calories 301 Calories from Fat 200
% Daily Value*
Total Fat 22.18g 34%
Saturated Fat 11.88g 59%
Trans Fat 0.404g
Polyunsaturated Fat 1.194g
Monounsaturated Fat 7.108g
Cholesterol 60mg 20%
Sodium 420mg 18%
Potassium 327mg 9%
Total Carbohydrates 9.24g 3%
Dietary Fiber 1.8g 7%
Sugars 5.06g
Protein 17.09g 34%
Vitamin A 67%
Vitamin C 31%
Calcium 52%
Iron 7%
* Percent Daily Values are based on a 2000 calorie diet.

For another gorgeous roasted broccoli recipe check out my Broccoli Pasta Bake!

Broccoli Pasta Bake with serving spoon

If you loved this Cauliflower Cheese recipe then be sure to Pin it for later! Already made it or got a burning question? Give me a shout in the comments below and pick up your free ecookbook along the way!


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  • Reply
    October 11, 2018 at 10:40 pm

    Oh wow- this looks SO good! And the gruyere will just melt in your mouth!

    • Reply
      October 12, 2018 at 8:19 pm

      Isn’t Gruyere just the best!?

  • Reply
    Lauren Vavala @ DeliciousLittleBites
    October 11, 2018 at 10:42 pm

    Pre-roasting the broccoli is just brilliant! I’m pinning this right now and can’t wait to make it. I’m a sucker for Gruyere too!

    • Reply
      October 12, 2018 at 8:19 pm

      Thanks Lauren! Enjoy!! 🙂

  • Reply
    October 11, 2018 at 11:35 pm

    Roasting adds such a better flavor to cauliflower and broccoli and I can definitely see it being better with both of them in there. Takes me back to childhood but in a tastier way!

    • Reply
      October 12, 2018 at 8:26 pm

      Yes! Totally agree, it’s such a walk down memory line isn’t it!?

  • Reply
    Cindy Gordon
    October 11, 2018 at 11:51 pm

    Everything about this …YES! I love broccoli, I love cheese and you probably guessed it that I love cauliflower too! SUPER YUM

    • Reply
      October 12, 2018 at 8:27 pm

      A trio a deliciousness!!!

  • Reply
    Matt @ Plating Pixels
    October 12, 2018 at 12:28 am

    Looks super cheesy! Love broccoli combined with cheese. My kinda casserole.

    • Reply
      October 12, 2018 at 8:27 pm

      The best kinda casserole right!?

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