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Creamy Broccoli and Cauliflower Gratin

A cozy and cheesy casserole that's a perfect way to sneak veggies into your meals. Quick, easy, and delicious!
Print Recipe
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 6 servings
Course: Main Course, Side Dish
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Vegetables
  • 2 cups broccoli florets Lightly blanched
  • 2 cups cauliflower florets Lightly blanched
Sauce Base
  • 2 tablespoons unsalted butter
  • 2 tablespoons all-purpose flour
  • 2 cups milk Whole or low-fat
Cheese
  • 1 cup Gruyère cheese, shredded
  • ½ cup Parmesan cheese, grated
Seasoning & Topping
  • to taste Salt
  • to taste Pepper
  • ½ cup breadcrumbs Optional for crunch

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C).
  2. In a pot of boiling water, lightly blanch the broccoli and cauliflower florets for about 3-4 minutes.
  3. Drain and set aside.
Sauce Creation
  1. Melt the butter in a saucepan over medium heat.
  2. Add the flour and whisk for about a minute until it forms a paste.
  3. Gradually add the milk, whisking until thickened and bubbly, about 5 minutes.
  4. Stir in ¾ cup of Gruyère and the Parmesan cheese until melted and smooth.
  5. Season with salt and pepper.
Assembly & Baking
  1. In a baking dish, layer the blanched broccoli and cauliflower.
  2. Pour the cheesy sauce over the top.
  3. Sprinkle the remaining Gruyère and breadcrumbs (if using) over the casserole.
  4. Bake for about 25-30 minutes, until golden and bubbly.
Serving
  1. Let it cool slightly before serving.

Notes

For extra crunch, crushed crackers or nuts can be added before baking. Feel free to swap broccoli and cauliflower with your favorite veggies.