Skip to main content

Broccoli Cauliflower Casserole

This creamy broccoli and cauliflower casserole is the ultimate vegetarian side dish, offering a sophisticated twist on the classic cauliflower cheese. By combining fresh florets with a rich, velvety sauce made from cream cheese and savoury stock, this bake achieves a wonderful depth of flavour. The addition of a golden, buttery breadcrumb crust provides a satisfying crunch that contrasts beautifully with the tender, steamed vegetables.

Ideal for serving alongside a traditional Sunday roast or as a standalone midweek meal, this comforting dish is both nutritious and filling. It is a brilliant way to encourage the whole family to eat more greens, and the preparation is simple enough for novice cooks. For the best results, ensure the vegetables remain slightly firm before baking to maintain a pleasant texture throughout.

Video picks

Continue reading below

Ingredients for Broccoli Cauliflower Casserole

  • 1 cauliflower head

  • 1 large broccoli head

  • 1/2 cup (1 stick) butter

  • 1 medium onion, diced

  • 2 garlic cloves, minced

  • 60ml plain flour

  • 600ml low-sodium chicken broth

  • 110g cream cheese, at room temperature

  • 1/4 teaspoons seasoned salt, more to taste

  • Kosher salt and black pepper to taste

  • 1/4 teaspoons paprika, plus more for sprinkling

  • 35g seasoned breadcrumbs

  • 170g grated Monterey Jack cheese

  1. Preheat the oven to 191°C.

  2. Using your hands, break the cauliflower and broccoli into very small florets. Place them in a steamer and steam them over simmering water until slightly tender, 3 to 4 minutes. Set them aside.

  3. Melt 90ml of the butter in a large skillet over medium heat, then add the onion and garlic and cook until the onion is translucent, 3 to 4 minutes. Sprinkle in the flour, stirring it into the onion mixture and cook it for a minute or so. Pour in the broth, stirring continuously, and cook the sauce, stirring occasionally, until it begins to thicken, about 3 minutes.

  4. Add the cream cheese and stir until it melts completely. Then stir in the seasoned salt, kosher salt, pepper, and paprika. Turn off the heat and set the sauce aside.

  5. In a small bowl, combine the breadcrumbs and the remaining 2 tablespoons melted butter and blend with a fork.

  6. To assemble, butter a small (2-quart) casserole and add half the broccoli-cauliflower mixture. Pour on half the sauce, top with half the cheese, and sprinkle on a little paprika. Repeat another round of the veggies, sauce, cheese, and paprika...then top the casserole with the buttery breadcrumbs.

  7. Bake the casserole for 25 to 30 minutes, or until the breadcrumbs are golden and the casserole is bubbly around the edges. Serve it nice and piping hot!

The casserole can be assembled and stored in the fridge, unbaked, for up to 24 hours. Allow 10 minutes extra cooking time if baking straight out of the fridge.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.