Broccoli Cauliflower Casserole
There’s something undeniably comforting about a warm, hearty dish like Broccoli Cauliflower Casserole. I remember the first time I had it during a chilly winter evening at my aunt’s house. The aroma wafting from the oven filled the room with a sense of warmth and togetherness. As we gathered around the dinner table, the golden-brown topping glistened under the low light, beckoning everyone to dig in. Each bite was a delightful combination of creamy textures and savory flavors, with the slight crunch of breadcrumbs adding that perfect finishing touch. Whether it’s a family gathering or a cozy night in, this casserole has a way of bringing everyone together, making it a staple in my winter recipe collection.
Recipe Snapshot
50 mins
15 mins
35 mins
Medium
340 kcal
12 g
Standard
22 g
2-quart casserole or baking dish, Small Bowl, Saucepan
The Magic of This Broccoli Cauliflower Casserole
Comforting and Hearty
One of the reasons I adore Broccoli Cauliflower Casserole is its ability to transform simple vegetables into a dish that’s both satisfying and heartwarming. This casserole uses frozen broccoli and cauliflower, bringing convenience without sacrificing flavor. The creamy sauce binds everything together, giving you that rich, comforting feel that’s perfect for cold nights.
Versatile and Customizable
This recipe is wonderfully adaptable. While it features broccoli and cauliflower as the star players, you can mix in other vegetables like carrots or peas if you want to change things up a bit. This flexibility makes it an excellent go-to for using up leftover veggies in your fridge, turning what could be waste into a delicious meal.
Perfect for Meal Prep
I love that this dish can be made ahead of time. Assemble it the night before and pop it in the fridge, allowing the flavors to meld together. The next day, all you need to do is sprinkle the breadcrumb topping and bake it. It’s a lifesaver on busy weeknights!
Family-Friendly
This is a dish that even the pickiest eaters will enjoy. The creamy sauce makes the vegetables palatable for kids while providing a nutritious option that parents can feel good about serving. It’s a win-win for meal times!
Great for Entertaining
If you’re hosting a gathering, Broccoli Cauliflower Casserole is a hit. It’s easy to prepare in larger quantities, and its hearty nature will satisfy guests. Plus, it looks beautiful when served right from the oven with that crispy breadcrumb topping!
Comfort Food with Nutritional Benefits
Lastly, this casserole not only pleases the palate, but it’s also packed with nutrients. Both broccoli and cauliflower are rich in vitamins and fiber, making this dish a wholesome choice that supports your health goals while still being indulgent.
Broccoli Cauliflower Casserole Ingredients

The ingredients in Broccoli Cauliflower Casserole work beautifully together to create a comforting dish that’s both creamy and crunchy. Each component plays a role in enhancing the flavors and textures. The combination of broccoli and cauliflower provides a nutritious base, while the sauce and breadcrumbs add richness and crunch.
- 16 ounces frozen broccoli florets, thawed and drained
- 16 ounces frozen cauliflower florets, thawed and drained
- ½ cup garlic herb bread crumbs (other bread crumbs such as plain, Italian seasoned, or panko may be substituted)
- 4 tablespoons unsalted melted butter, divided
- 2 tablespoons all-purpose flour
- 1 cup milk (whole or 2% recommended)
- ½ cup parmesan cheese, finely grated; divided
- 4 ounces cream cheese, softened (use full fat cream cheese sold in a block; no lite or fat-free or whipped products)
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- ½ teaspoon salt, or to taste
- ½ teaspoon freshly ground black pepper, or to taste
How to Cook Broccoli Cauliflower Casserole

Cooking Broccoli Cauliflower Casserole is a straightforward process that brings together each of these fantastic ingredients. Follow along as I guide you through the steps to create this delicious dish that will surely satisfy your cravings.
- Preheat your oven to 350°F. Start by spraying a 2-quart casserole or baking dish with cooking spray and set it aside. This will prevent any sticking and ensure your casserole comes out easily.
- Next, ensure your broccoli and cauliflower are fully thawed and well-drained. Excess moisture can lead to a soupy casserole, which is not the desired outcome. Set them aside while you prepare the sauce.
- In a small bowl, combine the bread crumbs, 2 tablespoons of the melted butter, and ¼ cup of the parmesan cheese. Use a fork to fluff and mix until everything is well coated. This mixture will create a delightful topping.
- In a medium saucepan, melt the remaining 2 tablespoons of butter over medium-high heat. Add the flour and whisk continuously for about one minute to create a roux. This step is crucial as it gives your sauce a nice base and prevents it from being runny.
- Slowly add the milk to the roux, continuing to whisk to incorporate. Keep an eye on the heat to bring the mixture just to the point of simmering. Avoid boiling, as this could alter the texture of the sauce.
- Add the remaining ¼ cup of parmesan cheese, the cream cheese, garlic powder, onion powder, salt, and pepper to the simmering milk mixture. Continue whisking until everything is melted and smooth.
- Once your sauce is ready, add the thawed broccoli and cauliflower to the saucepan. Toss them gently until fully coated in the creamy sauce.
- Transfer the mixture to your prepared baking dish, spreading it evenly. Top with the breadcrumb mixture you set aside earlier, making sure to cover the entire surface.
- Bake uncovered in your preheated oven for about 30 to 40 minutes. You want the top to become lightly golden brown and crispy. Start checking at around 25 minutes, and be sure to rotate the dish halfway through for even cooking.
- Once done, remove the casserole from the oven and let it cool slightly before serving. Enjoy warm!
Things Worth Knowing
- Thawing Vegetables: Ensure that your frozen vegetables are completely thawed and drained before mixing them into the casserole. This helps prevent excess moisture that can make the dish soupy.
- Making a Roux: When making the roux, whisk constantly to avoid lumps. It’s essential for creating a smooth cheese sauce.
- Check for Doneness: Ovens can vary, so start checking your casserole around 25 minutes. Look for a golden-brown topping and bubbling edges.
- Serving Temperature: This casserole is best served warm. Let it cool for a few minutes to allow the sauce to set before digging in.
Ways to Customize

There are countless ways to make Broccoli Cauliflower Casserole your own. Here are some tips to customize it to your taste:
- Adding Protein: You can add shredded chicken or cooked ground beef for a heartier meal.
- Different Cheese: Feel free to experiment with different cheeses like mozzarella or cheddar for a unique flavor.
- Spicy Kick: Add some crushed red pepper flakes or diced jalapeños to give your casserole a little heat.
- Seasonal Vegetables: Incorporate seasonal vegetables like spinach, peas, or even zucchini for variety.
- Vegan Version: Substitute the cheese and cream with dairy-free alternatives to create a vegan version.
- Gluten-Free Option: Use gluten-free bread crumbs and flour to make this dish suitable for gluten-sensitive guests.
Perfect Matches for Broccoli Cauliflower Casserole
When it comes to serving Broccoli Cauliflower Casserole, you have plenty of delightful options. Here are some ideas:
- Side Dishes: Pair it with a crisp side salad or roasted vegetables to lighten up the meal.
- Occasions: This casserole is perfect for potlucks, family gatherings, or even a cozy dinner at home.
- Seasonal Pairings: In winter, serve it alongside a warm soup or bread for a comforting meal.
- Storage Tips: Leftovers can be stored in an airtight container in the fridge for up to five days.
- Reheating: Reheat in the microwave or oven until warmed through; be careful not to overcook.
FAQ
Conclusion
In conclusion, Broccoli Cauliflower Casserole is more than just a dish; it’s a warm hug on a plate. It’s perfect for family gatherings, weeknight dinners, or any occasion that calls for comfort food. I encourage you to try making it tonight, and I promise it will quickly become a favorite in your household. Enjoy this creamy, cheesy delight that brings everyone to the table!

Broccoli Cauliflower Casserole
Ingredients
Equipment
Method
- Preheat your oven to 350°F. Start by spraying a 2-quart casserole or baking dish with cooking spray and set it aside. This will prevent any sticking and ensure your casserole comes out easily.
- Next, ensure your broccoli and cauliflower are fully thawed and well-drained. Excess moisture can lead to a soupy casserole, which is not the desired outcome. Set them aside while you prepare the sauce.
- In a small bowl, combine the bread crumbs, 2 tablespoons of the melted butter, and ¼ cup of the parmesan cheese. Use a fork to fluff and mix until everything is well coated. This mixture will create a delightful topping.
- In a medium saucepan, melt the remaining 2 tablespoons of butter over medium-high heat. Add the flour and whisk continuously for about one minute to create a roux. This step is crucial as it gives your sauce a nice base and prevents it from being runny.
- Slowly add the milk to the roux, continuing to whisk to incorporate. Keep an eye on the heat to bring the mixture just to the point of simmering. Avoid boiling, as this could alter the texture of the sauce.
- Add the remaining ¼ cup of parmesan cheese, the cream cheese, garlic powder, onion powder, salt, and pepper to the simmering milk mixture. Continue whisking until everything is melted and smooth.
- Once your sauce is ready, add the thawed broccoli and cauliflower to the saucepan. Toss them gently until fully coated in the creamy sauce.
- Transfer the mixture to your prepared baking dish, spreading it evenly. Top with the breadcrumb mixture you set aside earlier, making sure to cover the entire surface.
- Bake uncovered in your preheated oven for about 30 to 40 minutes. You want the top to become lightly golden brown and crispy. Start checking at around 25 minutes, and be sure to rotate the dish halfway through for even cooking.
- Once done, remove the casserole from the oven and let it cool slightly before serving. Enjoy warm!
Notes
- Storage: Leftovers will keep airtight for up to 4-5 days in the fridge, noting that the topping will not remain crispy. Reheat gently in the microwave for about 30 seconds, or as desired.
- Make-Ahead: Assemble the casserole to the point of getting it into the casserole dish, but before adding the breadcrumb topping and baking it off. Cover tightly and refrigerate for up to 24 hours. Set it on the counter for at least 30 minutes before you bake it.


