Cauliflower and Broccoli Gratin


Treat yourself to the ultimate comfort food experience with our mouthwatering Cauliflower and Broccoli Gratin. This irresistible dish combines tender cauliflower and broccoli florets smothered in a creamy, cheesy sauce and baked to golden perfection. Whether you’re craving a cozy family dinner or looking to impress guests at your next gathering, this gratin is sure to satisfy your comfort food cravings and leave everyone coming back for more. Let’s dive into the recipe and discover the cheesy goodness that awaits!


  • 1 head cauliflower, cut into florets
  • 1 head broccoli, cut into florets
  • 2 tablespoons butter
  • 2 tablespoons all-purpose flour
  • 1 1/2 cups milk
  • 1 cup shredded cheddar cheese
  • 1/4 cup grated Parmesan cheese
  • 1/2 teaspoon garlic powder
  • Salt and pepper, to taste
  • 1/4 cup breadcrumbs (optional)
  • Fresh parsley, chopped, for garnish


  1. Preheat and Prepare: Preheat your oven to 375°F (190°C). Grease a baking dish with butter or cooking spray to prevent sticking.
  2. Steam Vegetables: Steam the cauliflower and broccoli florets until they are tender but still slightly firm. Drain them and set aside while you prepare the cheese sauce.
  3. Make Cheese Sauce: In a saucepan, melt the butter over medium heat. Stir in the flour and cook for 1-2 minutes, until the mixture is bubbly and golden. Gradually whisk in the milk, stirring constantly, until the sauce is smooth and thickened.
  4. Add Cheese and Seasonings: Remove the saucepan from the heat and stir in the cheddar cheese and Parmesan cheese until melted and smooth. Season the sauce with garlic powder, salt, and pepper to taste, ensuring a flavorful cheese sauce.
  5. Assemble Gratin: Arrange the steamed cauliflower and broccoli in the prepared baking dish. Pour the cheese sauce evenly over the vegetables, ensuring they are well coated with the creamy mixture.
  6. Optional Crunchy Topping: If desired, sprinkle breadcrumbs over the top of the gratin for an added crunch and texture that contrasts perfectly with the creamy cheese sauce.
  7. Bake to Perfection: Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the top is golden and bubbly, and the vegetables are tender.
  8. Garnish and Serve: Before serving, garnish the gratin with chopped fresh parsley for a vibrant pop of color and added freshness.

Nutritional Information:

  • Prep Time: 15 minutes
  • Cooking Time: 25-30 minutes
  • Total Time: 40-45 minutes
  • Calories: Approximately 180 kcal per serving
  • Servings: 6 servings

Serving Tips:

  1. Serve as a Side or Main Dish: Cauliflower and Broccoli Gratin can be served as a delicious side dish alongside roasted meats, grilled chicken, or fish. Alternatively, you can enjoy it as a satisfying vegetarian main course accompanied by a fresh salad or crusty bread.
  2. Garnish for Presentation: Before serving, sprinkle chopped fresh parsley over the gratin for a vibrant pop of color and added freshness. This simple garnish enhances the presentation of the dish and adds a touch of elegance to your table.
  3. Pair with Complementary Dishes: Enhance the flavor experience by pairing Cauliflower and Broccoli Gratin with complementary dishes. Consider serving it alongside roasted potatoes, steamed vegetables, or a tangy coleslaw for a well-rounded meal.
  4. Serve Hot and Fresh: For the best flavor and texture, serve the gratin hot and fresh from the oven. The creamy cheese sauce will be at its most indulgent, and the vegetables will be tender and flavorful.
  5. Enjoy Leftovers: Leftover gratin can be enjoyed the next day for lunch or dinner. Simply reheat individual portions in the microwave or oven until warmed through, being careful not to overcook and dry out the dish.

Storage Tips:

  1. Refrigeration: Store any leftover Cauliflower and Broccoli Gratin in an airtight container in the refrigerator for up to 3-4 days. Allow the gratin to cool completely before transferring it to the container to prevent condensation and maintain its freshness.
  2. Freezing: While Cauliflower and Broccoli Gratin can be frozen, the texture may change slightly upon thawing. To freeze, portion the cooled gratin into individual freezer-safe containers or resealable bags. Freeze for up to 2-3 months for best quality.
  3. Thawing and Reheating: When ready to enjoy frozen gratin, thaw it overnight in the refrigerator or defrost it in the microwave using the appropriate setting. Reheat the gratin in the oven at a low temperature to preserve its creamy texture and avoid drying out the vegetables.
  4. Revitalize with Fresh Ingredients: Before serving reheated gratin, consider adding a sprinkle of extra cheese or breadcrumbs on top for added flavor and texture. You can also garnish with additional fresh parsley to brighten up the dish and add a burst of color.


1. Can I use frozen cauliflower and broccoli for this recipe? Yes, you can use frozen cauliflower and broccoli in place of fresh. Simply thaw them according to package instructions before steaming. Keep in mind that frozen vegetables may release more moisture during cooking, so you may need to adjust the consistency of the cheese sauce accordingly.

2. Can I make this recipe ahead of time? Absolutely! You can assemble the Cauliflower and Broccoli Gratin ahead of time and refrigerate it, covered, for up to 24 hours before baking. This is a convenient option for meal prep or when hosting guests. Just remember to add the breadcrumb topping just before baking to maintain its crunchiness.

3. How can I make this dish gluten-free? To make this recipe gluten-free, simply substitute the all-purpose flour with a gluten-free flour blend or cornstarch to thicken the cheese sauce. Additionally, ensure that the breadcrumbs used for topping are gluten-free or omit them altogether for a gluten-free version of the gratin.

4. Can I customize the cheese blend in the sauce? Yes, feel free to customize the cheese blend to your liking. While the recipe calls for cheddar and Parmesan cheeses, you can experiment with different cheeses such as Gruyère, Monterey Jack, or mozzarella for unique flavor combinations. Adjust the ratios based on your preferences and taste preferences.

5. How do I prevent the gratin from becoming watery? To prevent the gratin from becoming watery, ensure that the cauliflower and broccoli are properly drained after steaming to remove excess moisture. Additionally, avoid overcooking the vegetables, as they may release more liquid during baking. Lastly, allow the gratin to rest for a few minutes after baking before serving to allow the sauce to thicken slightly.


With its creamy cheese sauce, tender cauliflower and broccoli, and optional crunchy breadcrumb topping, our Cauliflower and Broccoli Gratin is the epitome of comfort food perfection. Whether enjoyed as a side dish or a satisfying main course, this gratin is sure to become a staple in your recipe repertoire. So, gather your ingredients and get ready to indulge in cheesy goodness with every forkful of this delectable dish!