Broccoli Cauliflower Casserole

5 from 1 vote

Broccoli Cauliflower Casserole

The perfect comfort food side dish for the holidays, this Broccoli Cauliflower Casserole is made with an easy homemade cheese sauce and crispy topping.

Course Dinner, Side Dish

Cuisine American, Canadian, Christmas, Holiday, Thanksgiving

Keyword Cheesy Broccoli Cauliflower Casserole

Prep Time 30

Cook Time 25

Total Time 55

Servings servings

Calories 580kcal

Author Chrissie (thebusybaker.ca)

Equipment

Ingredients

6 cups fresh broccoli florets washed, dried and cut into bite-sized pieces
4 cups fresh cauliflower florets washed, dried and cut into bite-sized pieces

For the cheese sauce:

4 tablespoons unsalted butter
4 tablespoons all purpose flour
2 1/2 cups milk
a pinch ground nutmeg
3/4 teaspoon salt
1/4 teaspoon pepper
4 cups shredded cheddar cheese
1 cup shredded parmesan cheese

For the crispy topping:

2 1/2 cups breadcrumbs
1 teaspoon dried parsley
3 tablespoons melted butter

US Customary - Metric

Instructions

Prepare the broccoli and cauliflower florets by washing, drying, and chopping into bite-sized pieces.
Boil a small amount of water in a large pot and add the florets to a steamer basket over the water. Steam the broccoli and cauliflower florets just until bright in colour and only slightly tender (about 3 minutes). Set aside.
Preheat the oven to 375 degrees Fahrenheit and grease a large 9-inch by 13-inch (or equivalent) baking dish.
Heat a medium pot over medium-low heat and add the butter.
Melt the butter in the pot and add the flour, whisking constantly for about 1-2 minutes.
Slowly pour in the milk, whisking constantly to remove lumps.
Add the nutmeg and salt and pepper, whisking to combine.
Add the grated cheeses and stir gently until melted and the cheese sauce is smooth.
Add the steamed veggies to the bottom of the baking dish, pouring the hot cheese sauce over the top.
Stir just a little bit to be sure all the veggies are well coated in the sauce.
Mix the breadcrumbs and parsley in a small bowl together with the melted butter and sprinkle the mixture evenly over the top of the veggie and sauce.
Bake the casserole, uncovered, for 25-30 minutes or until the cheese sauce is bubbling and the topping is golden brown.

Notes

Make-Ahead Instructions

To make this casserole a day ahead, follow the recipe as directed until the casserole is ready to bake, right before adding the crispy topping. Cover it with plastic wrap and place it in the refrigerator. When ready to bake remove the plastic wrap, add the crispy topping ingredients as directed, place the casserole in a cold oven and bake as directed, setting the timer when the oven reaches the set temperature.

Storage Instructions

Store leftovers in an airtight container and reheat leftovers in the microwave. For best results, to keep the topping crispy, reheat in an oven-safe baking dish in the oven until heated through.

Nutrition