Introduction
Cauliflower Broccoli Casserole is a delightful dish that brings together the wholesome goodness of two favorite vegetables in a creamy, cheesy embrace. This recipe is perfect for those looking for an easy, nutritious meal that doesn’t skimp on flavor. Whether you’re feeding a family or preparing a dish for a potluck, this casserole is sure to be a hit.
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, this recipe is perfect for busy weeknights.
- Nutritious and Delicious: Packed with vitamins and fiber, cauliflower and broccoli make this casserole a healthy choice without sacrificing taste.
- Creamy and Cheesy: The rich cheese sauce adds a comforting touch, making it a satisfying meal for all ages.
- Versatile: Easily adaptable to suit various dietary needs, including vegetarian and gluten-free options.
- Great for Leftovers: This casserole reheats well, making it an excellent option for meal prep.
Ingredients & Preparation Notes
- Cauliflower: Choose a firm, compact head with no brown spots. Cut into evenly sized florets for even cooking.
- Broccoli: Look for bright green, tightly closed buds. Similar to cauliflower, cut into florets.
- Butter: Unsalted butter is preferred to control the saltiness of the dish.
- All-purpose flour: Used to thicken the cheese sauce; for a gluten-free option, use a 1:1 gluten-free flour blend.
- Milk: Whole or 2% milk works best for a creamy sauce. You can use skim milk, but the sauce might be less rich.
- Shredded cheddar cheese: Freshly shredded cheese melts better than pre-shredded. Reserve some for topping.
- Grated Parmesan cheese: Adds a nutty depth to the sauce.
- Garlic powder and onion powder: These add flavor without the need for fresh ingredients.
- Salt and pepper: Adjust to taste, but remember the cheese adds saltiness.
Professional Tips & Techniques
- Blanching: Briefly boiling the vegetables helps maintain their vibrant color and texture. Aim for about 5 minutes to keep them crisp-tender.
- Roux-based Sauce: The roux (butter and flour mixture) is crucial for a smooth, thick cheese sauce. Cook it until golden to avoid a raw flour taste.
- Temperature Control: Preheat your oven and ensure the casserole reaches 165°F (74°C) internally for safety.
- Visual Cues: Look for a golden brown top and bubbling edges as signs that your casserole is done.
- Avoid Overcooking: Overcooked vegetables can become mushy. Keep an eye on them during the boiling step.
Recipe Variations
- Vegan Option: Substitute the butter with vegan butter, use a plant-based milk, and opt for vegan cheese.
- Gluten-Free: Use a gluten-free flour blend in place of all-purpose flour.
- Add Protein: Stir in cooked chicken, ham, or tofu for a heartier meal.
- Herb Infusion: Add fresh herbs like thyme or rosemary to the cheese sauce for a different flavor profile.
- Spicy Kick: Include a dash of hot sauce or diced jalapeños for some heat.
- Cheese Variety: Experiment with different cheeses like Gruyere or mozzarella for unique flavors.
- Crunchy Topping: Sprinkle breadcrumbs or crushed crackers mixed with melted butter on top before baking for added texture.
Serving Suggestions
- Family Dinner: Serve with a side salad and crusty bread for a complete meal.
- Potluck Favorite: This casserole is easy to transport and serve at gatherings.
- Holiday Side Dish: Pair it with roasted turkey or ham for a festive meal.
- Presentation Tip: Garnish with fresh herbs or a sprinkle of paprika for an appealing look.
- Pairing: A light white wine or a crisp cider complements the richness of the casserole.
Storage & Make-Ahead Tips
- Refrigeration: Store leftovers in an airtight container in the fridge for up to 3-4 days.
- Freezing: This casserole freezes well. Cool completely, then freeze in a freezer-safe dish for up to 3 months.
- Reheating: Thaw overnight in the fridge, then reheat in the oven at 350°F (175°C) until heated through.
- Make-Ahead: Assemble the casserole up to the baking step, then refrigerate. Bake when ready to serve, adding a few extra minutes to the cooking time.
Frequently Asked Questions
Q: Can I make this ahead of time?
Yes, you can assemble the casserole and refrigerate it before baking. Add a few extra minutes to the baking time if baking from cold.
Q: Is this recipe suitable for a vegetarian diet?
Absolutely, this recipe is vegetarian as written. Just ensure any cheese used is free of animal rennet.
Q: How can I make this dish gluten-free?
Substitute the all-purpose flour with a 1:1 gluten-free flour blend. Ensure all other ingredients are gluten-free.
Q: Can I use frozen cauliflower and broccoli?
Yes, but thaw and drain them well before using to prevent excess moisture in the casserole.
Q: What can I do if the sauce is too thick?
Add a bit more milk, a tablespoon at a time, until you reach the desired consistency.
Q: How do I know when the casserole is done?
Look for a golden brown top and bubbling edges. The internal temperature should reach 165°F (74°C).
Q: Can I add other vegetables to this casserole?
Yes, feel free to add other vegetables like carrots or peas, but adjust cooking times accordingly.
Q: Is it possible to make this dish dairy-free?
Yes, use dairy-free butter, milk, and cheese alternatives to make it dairy-free.
Conclusion
Cauliflower Broccoli Casserole is a versatile and delicious dish that’s easy to prepare and packed with nutrition. The creamy cheese sauce and tender vegetables make it a comforting meal that everyone will enjoy. Give this recipe a try, and don’t forget to share your experience on social media or leave a comment below.
Enjoy your wholesome and satisfying dinner!

Cauliflower Broccoli Casserole
Equipment
- 9x13 inch baking dish
- Large pot
- Saucepan
- Whisk
Ingredients
- 1 head cauliflower cut into florets
- 1 head broccoli cut into florets
- 2 tbsp butter
- 2 tbsp all-purpose flour
- 1 cup milk whole or 2%
- 1 cup shredded cheddar cheese divided
- 1/2 cup grated Parmesan cheese
- 1/2 tsp garlic powder
- 1/2 tsp onion powder
- Salt and pepper to taste
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish.
- Bring a large pot of salted water to a boil. Add the cauliflower and broccoli florets and cook for about 5 minutes until just tender. Drain well and set aside.
- In a saucepan over medium heat, melt the butter. Whisk in the flour and cook for 1-2 minutes until golden. Gradually whisk in the milk, stirring constantly to avoid lumps. Cook until the sauce thickens, about 5 minutes.
- Remove the saucepan from heat. Stir in 3/4 cup of the shredded cheddar cheese, Parmesan cheese, garlic powder, and onion powder until melted and smooth. Season with salt and pepper to taste.
- Place the drained cauliflower and broccoli in the prepared baking dish. Pour the cheese sauce over the vegetables, mixing gently to coat evenly. Sprinkle the remaining 1/4 cup of shredded cheddar cheese on top.
- Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the top is golden brown.
- Let the casserole cool for 5 minutes before serving. Enjoy your delicious Cauliflower Broccoli Casserole!