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Home Broccoli recipes

Creamy Broccoli Casserole (Gratin)

By Nagi Maehashi
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Published18 Jul '18 Updated30 Jun '25
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A made-from-scratch Broccoli Casserole with tender broccoli baked in a creamy cheese sauce. Also known as Broccoli Gratin, this is arguably the ultimate way to consume tons and tons of broccoli!

Close up of a spoon scooping up a serving of creamy garlic parmesan Broccoli Casserole

Creamy Broccoli Casserole

I’m about as much of a carnivore as a girl can be. And yet, even I would happily have this Broccoli Casserole for dinner any night of the week. Not even just as a side. As the main. It’s that good.

I mean, this isn’t just another boring broccoli dish. THIS is broccoli baked with thick, creamy sauce that’s loaded with cheesy parmesan and garlic flavours – made from scratch without canned soup (the thought never crossed my mind, but apparently there are many recipes that do this!).

Broccoli heaven. ❤

Well, let’s be completely honest here. This broccoli recipe is all about that cheese sauce. So I make sure there’s plenty of it!!!

Preparation steps for Creamy Garlic Parmesan Broccoli Casserole

Mac and Cheese – in broccoli form!

If you love my Baked Mac and Cheese, then you’re going to love this Broccoli Casserole. Because that’s basically what this recipe is. Mac and Cheese – minus the Mac, plus broccoli.

The same cheesy sauce. And that same gorgeous buttery, crunchy breadcrumb topping. In my world, Broccoli Casserole doesn’t happen without a crunchy topping!

Overhead photo of creamy Broccoli Casserole topped with a golden crunchy topping in a white casserole dish, fresh out of the oven ready to be served.

Broccoli gratin / broccoli bake / broccoli casserole….

Truthfully, I am not really sure what to call this recipe. I guess it’s basically Cauliflower Cheese… in broccoli form. I wanted to sound all Frenchy fancy and call it Broccoli au Gratin. Then I wondered whether I should just bluntly call it a Broccoli Bake. Very Aussie – I think.

After flopping back and forth, I settled on the most neutral name I could think of – Broccoli Casserole.

But actually, never mind what I think. What do you think this should be called? Let me know in the comments below and I’ll change the recipe name if necessary!! – Nagi

PS This is how I have this as a meal – with hunks of crusty bread on the side for dunking / piling / wiping bowl clean. YUM.

Creamy Garlic Parmesan Broccoli Casserole in a rustic dark bowl, ready to be eaten.

WATCH HOW TO MAKE IT

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Close up of a spoon scooping up a serving of creamy garlic parmesan Broccoli Casserole

Creamy Broccoli Casserole

Author: Nagi | RecipeTin Eats
Prep: 10 minutes mins
Cook: 1 hour hr
Total: 1 hour hr 10 minutes mins
Bake, Vegetable
French influence
5 from 26 votes
Servings4 as main, 8 as side
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RECIPE VIDEO ABOVE. This is the broccolli version of Cauliflower Cheese! Tender broccoli smothered in a creamy garlic-parmesan cheese sauce which is pretty much the one I use for everybody's favoure Mac and Cheese. It's nice and saucy, rather than being stodgy and so thick you can cut into it like cake, so there's extra cheese sauce to spoon over once served.

Ingredients

  • 600g / 1.2 lb broccoli florets , small to medium (2 large heads, Note 1)
  • 60g / 4 tbsp unsalted butter
  • 4 garlic cloves , minced
  • 6 tbsp plain flour
  • 2 cups milk , preferably warm (full or low fat)
  • 1 1/2 cups chicken broth/stock , preferably warm
  • 1.5 cups cheddar cheese, freshly grated (Note 2)
  • 1/2 cup grated parmesan cheese
  • Salt and pepper

Topping:

  • 1/2 cup panko breadcrumbs
  • 1/4 cup grated parmesan cheese
  • 20g / 1.5 tbsp unsalted butter, melted
Prevent screen from sleeping

Instructions

  • Preheat oven to 180C/350F.
  • Mix Topping ingredients in a bowl with a pinch of salt and pepper. Set aside.
  • Melt butter in a large pot over medium heat. Add garlic and cook for 1 minute until it smells incredible.
  • Add flour and cook for 1 minute, stirring constantly.
  • While whisking, slowly pour in half the milk. Once fully incorporated, whisk in the remaining milk plus the chicken broth.
  • Cook for 4 to 5 minutes, whisking every now and then and more towards the end, until the sauce thickens so that it coats the back of a wooden spoon and when you draw your finger across it, the path stays (see video).
  • Turn off heat, add cheeses, stir in (don’t worry if it doesn’t melt fully). Then do a taste test and add a bit of salt if required.
  • Add broccoli and stir well to coat.
  • Pour into a casserole dish, pat down to fill. Sprinkle over Topping, cover with foil then bake for 25 minutes.
  • Remove foil and bake for a further 20 minutes until the topping is deep golden and the broccoli is tender.
  • Stand for 5 minutes before serving.

Recipe Notes:

1. You’ll need around 1 kg / 2 lb of broccoli with stalks to get 600 g of florets. It’s around 8 cups (imagine piling them into a pack and squishing in). Cut / break florets the same size to ensure even cooking, around 4-5cm / 1.5 – 2″ long with the thickest part of the stem no wider than 1cm/ 2/5″, otherwise it might not cook through properly.
2. Or tasty, gruyere, monterey jack, pepper jack or other melting cheese of choice other than mozzarella. IMPORTANT: Use freshly grated. Store bought grated has anti caking agents and give the sauce a slight powdery feel.
3. General:
* Sauce consistency: The Sauce thins slightly once baked due to liquid leached by the broccoli. So make the consistency of the sauce in the pot slightly thicker than what you want the end result to be.
* The broccoli in this casserole is cooked to tender. If you are partial to tender crisp broccoli, then steam the broccoli first until it is just under tender crisp, steam dry to remove excess water from florets. Cook the cheese sauce slightly longer so it is quite thick, stir through broccoli etc, then bake UNCOVERED for just 20 – 25 minutes until top is golden.
* This will serve 5 to 6 generously, or 8 to 10 as part of a larger menu.
4. Nutrition per serving, assuming 6 servings. It’s a generous serving for a side – a heaped cup.
Originally published May 2015, post updated with new words, new photos and recipe video added. Recipe slightly tidied up but is fundamentally the same recipe, but here is the old recipe just in case it’s what you’re after.

Nutrition Information:

Calories: 359cal (18%)
Did you make this recipe?I love hearing how you went with my recipes! Tag me on Instagram at @recipe_tin.

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123 Comments

  1. immaculate says

    May 14, 2015 at 2:18 am

    5 stars
    You are not alone Nagi- I am a Carnivore too! Don’t like broccoli but I’ll take this anytime of the day. Yum!

    Reply
    • Nagi | RecipeTin says

      May 14, 2015 at 7:00 am

      Don’t like broccoli? Gasp! I thought you like pretty much everything!! 🙂

      Reply
  2. Dorothy Dunton says

    May 14, 2015 at 1:47 am

    Hi Nagi! I do love good vegetable casseroles! This would be good with cauliflower also! I am definitely a carnivore, but in the summer with so much fresh produce (and the hotter weather) we tend to eat more veggies and less meat. The only exception being bacon, of course! 🙂

    Reply
    • Nagi | RecipeTin says

      May 14, 2015 at 6:59 am

      Dorothy….can you IMAGINE how much yummier this would be WITH bacon?! I left it out deliberately because I was really trying to stick to my Meat Free for Carnivores series!! 🙂

      Reply
      • Dorothy Dunton says

        May 14, 2015 at 7:47 am

        Hi Nagi! YES and YES to the bacon! I think we should do an ancestry search to see if we are related! 🙂

        Reply
        • Nagi | RecipeTin says

          May 14, 2015 at 12:08 pm

          I bet we can find common roots if we go back 9 or 10 decades. Definitely. 😉

          Reply
  3. Melanie @ Carmel Moments says

    May 13, 2015 at 9:32 pm

    That looks so creamy! I love topping my mac and cheese with bread crumbs and I love this idea for broccoli. Gotta try!

    Have a beautiful day!

    Reply
    • Nagi | RecipeTin says

      May 14, 2015 at 6:53 am

      I top so many things with breadcrumbs it’s ridiculous!! Just love that extra crunch 🙂 Hope you have a great day too!

      Reply
  4. Fareeha - faskitchen says

    May 13, 2015 at 7:55 pm

    5 stars
    Breathtaking!!! Loving it.. I generally prefer more veggies than the meat, but broccoli is one vegetable which I really, really cant seem to push down my throat.. But just look at this.. I like the crunchy part of it as well.. Gonna add lotta bread crumbs.. Thanks for sharing this, Nagi..

    Reply
    • Nagi | RecipeTin says

      May 13, 2015 at 8:25 pm

      Thanks Fareeha! Glad we’re on the same page about crunch – bring on the panko!! 🙂

      Reply
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