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4.4 from 48 votes

Broccoli and Cauliflower Gratin

This broccoli and cauliflower au gratin is cheesy vegetable perfection. It's easy enough for a weeknight, but delicious enough for the holidays and it's always gobbled up.

Prep Time
10 mins
Cook Time
10 mins
Total Time
45 mins
Servings: 8 servings
Calories: 204 kcal
Course: Side Dish
Cuisine: American

Ingredients

For the vegetables
  • 1 tablespoon butter
  • 1 pound broccoli florets
  • 1 pound cauliflower florets
  • 1 tablespoon olive oil
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
For the cheese sauce
  • 3 tablespoons butter
  • 2 cloves garlic minced
  • 3 tablespoons flour
  • 1 teaspoon salt
  • 1 teaspoon ground pepper
  • 1 1/2 cups whole milk
  • 6 ounces Havarti grated
For the topping
  • 1/3 cup Panko bread crumbs
  • 2 tablespoons melted butter
  • 1 tablespoon chopped parsley

Instructions

To roast the vegetables
    Cup of Yum
  1. Preheat oven to 350 degrees. Butter the bottom and sides of a 9x13 baking dish with one tablespoon of butter.
  2. Add the broccoli and cauliflower to the buttered dish and drizzle with the oil. Season with salt and pepper.
  3. Bake for 20 minutes, stirring once halfway through.
  4. Start the cheese sauce when the vegetables have 8 minutes left to bake.
To make the cheese sauce
  1. To make the cheese sauce, melt the butter in a medium sauce pan.
  2. Add the garlic to the melted butter and cook, stirring constantly, for 1 minute.
  3. Whisk in the flour, salt, and pepper. Cook for 1 minute.
  4. Slowly add the milk to the flour mixture, whisking constantly. Cook, whisking constantly, for 4-5 minutes or until mixture reaches the consistency of a thin gravy.
  5. Remove from the heat and whisk in the cheese until the sauce is smooth and creamy.
To bake
  1. Remove the vegetables from the oven and stir. Pour the cheese sauce evenly over the vegetables.
  2. Combine the Panko and melted butter and sprinkle over the dish.
  3. Return to the oven for 10 minutes.
  4. Place the pan under the broiler and broil until the bread crumbs are browned, about 2 minutes, if desired.
  5. Remove from the oven, sprinkle with parsley, and serve.

Notes

  • We prefer fresh vegetables in this dish, but frozen will likely work.
  • You may swap out the Havarti for shredded cheddar, if you prefer.
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Nutrition Information

Calories 204kcal (10%) Carbohydrates 13g (4%) Protein 10g (20%) Fat 13g (20%) Saturated Fat 8g (40%) Cholesterol 38mg (13%) Sodium 716mg (30%) Potassium 430mg (12%) Fiber 2g (8%) Sugar 4g (8%) Vitamin A 815IU (16%) Vitamin C 78.9mg (88%) Calcium 229mg (23%) Iron 1mg (6%)

Nutrition Facts

Serving: 8servings

Amount Per Serving

Calories 204

% Daily Value*

Calories 204kcal 10%
Carbohydrates 13g 4%
Protein 10g 20%
Fat 13g 20%
Saturated Fat 8g 40%
Cholesterol 38mg 13%
Sodium 716mg 30%
Potassium 430mg 9%
Fiber 2g 8%
Sugar 4g 8%
Vitamin A 815IU 16%
Vitamin C 78.9mg 88%
Calcium 229mg 23%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.