Loaded Cauliflower and Broccoli Casserole

There’s something incredibly comforting about a bubbling, cheesy casserole, and my Loaded Cauliflower and Broccoli Casserole is the recipe I turn to time and time again. The aroma of crispy bacon and sharp cheddar fills my kitchen, promising a dish that’s pure comfort. I still remember the first time I made it, inspired by my love for hearty dishes like my classic Texas Tamale Pie Casserole. This dish, however, is a wonderfully creamy, low-carb dream that always disappears fast.

What Makes This Loaded Cauliflower and Broccoli Casserole So Special?

What I adore most about this Loaded Cauliflower and Broccoli Casserole is how it delivers such incredible flavor with minimal effort. With a prep time of just 15 minutes and a cook time of 30, it’s a lifesaver on busy weeknights. The combination of simple ingredients like cauliflower, broccoli, and thick-cut bacon, all enveloped in a rich and tangy cream cheese sauce, feels indulgent yet comes together so quickly. It’s my go-to impressive side.

The Key Ingredients You’ll Need

For this Loaded Cauliflower and Broccoli Casserole, I always insist on two things: thick-cut bacon for a substantial, meaty bite, and freshly shredded sharp cheddar for the best melt. The bacon adds a smoky depth that elevates the whole dish, a trick I also use in my creamy beef and macaroni.

Sofia

Creamy Loaded Cauliflower and Broccoli Casserole

A rich and creamy casserole packed with tender cauliflower and broccoli, crispy bacon, and melted cheddar cheese. This low-carb comfort food classic is the perfect side dish or keto-friendly main course.

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 8 servings

Course: Main Course, Side Dish

Cuisine: American

Calories: 485

Ingredients Equipment Method Notes

Ingredients

  

For the Casserole

• 1 large head Cauliflower cut into bite-sized florets (about 5-6 cups)
• 1 large head Broccoli cut into bite-sized florets (about 4-5 cups)
• 8 slices Thick-cut bacon
• 8 oz Cream cheese softened to room temperature
• 1 cup Sour cream full-fat recommended
• 1/4 cup Heavy cream
• 1.5 cups Shredded sharp cheddar cheese divided
• 1 tsp Garlic powder
• 1 tsp Onion powder
• 1/2 tsp Salt or to taste
• 1/2 tsp Black pepper freshly ground

For the Topping

• 1/4 cup Green onions or chives thinly sliced, for garnish

Equipment

• Large pot with steamer basket
• Large Skillet
• Large mixing bowl
• 9x13 inch baking dish

Method

 

Prepare Vegetables and Bacon

• Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch (or similar 3-quart) casserole dish.
• Steam or blanch the cauliflower and broccoli florets for 4-5 minutes until they are tender-crisp. Drain them very thoroughly and pat with paper towels to remove as much moisture as possible. This is crucial for preventing a watery casserole. Set aside.
• While the vegetables are cooking, place the bacon in a large skillet over medium heat. Cook until crispy, about 8-10 minutes. Transfer the bacon to a paper towel-lined plate to drain and cool, then crumble or chop it into small pieces.

Make the Creamy Cheese Sauce

• In a large mixing bowl, add the softened cream cheese, sour cream, and heavy cream. Whisk until the mixture is smooth and well-combined.
• Stir in 1 cup of the shredded cheddar cheese, garlic powder, onion powder, salt, and pepper. Mix until everything is evenly incorporated. Fold in about half of the crumbled bacon.

Assemble and Bake

• Gently add the well-drained cauliflower and broccoli to the cheese sauce. Fold carefully until the florets are fully coated.
• Pour the mixture into the prepared baking dish and spread into an even layer.
• Sprinkle the remaining 1/2 cup of shredded cheddar cheese and the remaining crumbled bacon evenly over the top.
• Bake uncovered for 20-25 minutes, or until the casserole is hot throughout and the sauce is bubbly around the edges.
• For a more golden-brown, crispy top, switch the oven to a high broil for the last 2-3 minutes of cooking. Watch it very carefully to prevent it from burning.
• Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows the sauce to set slightly. Garnish generously with fresh green onions or chives before serving.

Notes

Prevent a Watery Casserole: The most important step is to ensure the steamed/blanched cauliflower and broccoli are thoroughly drained and patted dry. Excess water will make the sauce thin. Roasting the vegetables for 15-20 minutes instead of steaming can also help remove moisture and add flavor.
Make-Ahead Tip: Assemble the casserole completely but do not bake. Cover tightly and refrigerate for up to 24 hours. When ready to bake, you may need to add an extra 10-15 minutes to the baking time.
Variations: Add 1/4 teaspoon of cayenne pepper or a dash of hot sauce for a little heat. You can also use a different cheese blend like a mix of Monterey Jack and cheddar.

How I Make Loaded Cauliflower and Broccoli Casserole

Bringing this dish to life is such a simple, satisfying process. I start by blanching the cauliflower and broccoli just until they’re tender-crisp, while I fry the bacon to perfection. While that’s happening, I whip together the decadent cheese sauce by melting cream cheese with sour cream and heavy cream. Then, I just fold everything together in a baking dish, top it with more cheese, and bake until it’s gorgeously golden and bubbly.

My Tips for the Perfect Outcome

• Don’t Overcook: Briefly blanch the vegetables so they retain a slight bite after baking.
• Shred Your Own Cheese: Pre-shredded cheese has anti-caking agents that can make the sauce grainy.
• Let It Rest: Allow the casserole to sit for a few minutes before serving to help it set.

How I Serve and Store This Dish

I love serving this Loaded Cauliflower and Broccoli Casserole straight from the oven, garnished with fresh chives. It’s a perfect side dish for roasted chicken or steak, but it’s hearty enough to be a main course for a keto-friendly meal. Leftovers are fantastic! I just store them in an airtight container in the refrigerator for up to three days and reheat in the microwave or oven.

FAQs

Can I make this Loaded Cauliflower and Broccoli Casserole ahead of time?

Absolutely! I often assemble the entire casserole without baking it, then cover and refrigerate it for up to 24 hours. When you’re ready to eat, just add about 10-15 minutes to the baking time since it will be starting from cold. It’s a fantastic trick for holiday meal prep.

Is it possible to use frozen cauliflower and broccoli?

Yes, you certainly can. I recommend thawing the frozen vegetables completely and patting them very dry with paper towels before using them. This step is crucial to prevent the final Loaded Cauliflower and Broccoli Casserole from becoming watery. You can then proceed with the recipe as written, blanching them lightly.

What are some good substitutions for bacon?

If you’re looking for a vegetarian option or just want a change, this recipe is very forgiving. I’ve had great results swapping the bacon with sautéed mushrooms for an earthy flavor. Diced ham or even shredded rotisserie chicken also works beautifully if you want to add a different protein to the dish.

How can I ensure my cheese sauce is smooth and not grainy?

The key to a perfectly smooth sauce for your Loaded Cauliflower and Broccoli Casserole is to use room temperature cream cheese and sour cream. I also recommend melting everything over low heat and stirring constantly. Avoid boiling the sauce, and always use freshly shredded cheese for the creamiest, meltiest results.

Conclusion

This recipe is one of my absolute favorites, and I’m so excited to share it with you. I hope this Loaded Cauliflower and Broccoli Casserole brings as much warmth and happiness to your dinner table as it does to mine. If you try it, please let me know!

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