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Broccoli Cauliflower Casserole Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.5 from 38 reviews
  • Author: Emily
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 12 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Description

A creamy, cheesy broccoli cauliflower casserole topped with a crispy garlic breadcrumb crust, perfect as a comforting side dish for any meal.


Ingredients

Scale

Vegetables

  • 4 cups broccoli, washed and cut into 1 inch pieces
  • 3 cups cauliflower, washed and cut into 1 inch pieces

Sauce

  • ¼ cup butter
  • 1 cup onion, diced
  • 4 cloves garlic, minced
  • ¼ cup all purpose flour
  • 2 cups milk
  • 1 tbsp thyme, fresh
  • 2 tsp salt
  • 1 tsp black pepper
  • 2 cups sharp cheddar cheese, shredded
  • ⅓ cup parmesan cheese, shredded

Crumb Topping

  • 1½ cups plain bread crumbs
  • 2 tsp garlic powder
  • 2 tbsp butter, melted


Instructions

  1. Preheat and Prepare Vegetables: Preheat oven to 350°F and heat a large pot of water. Boil or steam the broccoli and cauliflower for 4-5 minutes until semi-tender. Drain and place in a lightly greased 9×13 inch pan.
  2. Make Cream Sauce: In a large skillet, melt butter over medium heat. Add diced onion and minced garlic, cooking until tender and fragrant, about 4-5 minutes. Whisk in flour and cook until thick. Gradually whisk in milk, stirring continuously until the sauce is smooth and creamy. Season with salt, pepper, and fresh thyme.
  3. Assemble Casserole: Pour the creamy sauce over the broccoli and cauliflower in the baking pan. Sprinkle shredded sharp cheddar and parmesan cheese evenly on top.
  4. Prepare Crumb Topping: In a small bowl, mix bread crumbs, garlic powder, and melted butter. Spread this mixture evenly over the cheese layer.
  5. Bake: Bake the casserole at 350°F for 20 minutes until the topping is golden brown and the vegetables are tender.

Notes

  • Use fresh broccoli and cauliflower for the best texture and flavor.
  • This casserole can be prepared up to 48 hours ahead; cover and refrigerate. Bake until bubbly and heated through before serving.
  • If the cream sauce thickens too much without chicken broth, add a bit more milk to reach desired consistency.
  • For a gluten-free version, substitute bread crumbs with gluten-free crumbs.
  • Use sharp cheddar for a robust cheesy flavor; milder cheeses will affect the taste.

Nutrition

  • Serving Size: 1 serving
  • Calories: 220 kcal
  • Sugar: 4 g
  • Sodium: 450 mg
  • Fat: 14 g
  • Saturated Fat: 8 g
  • Unsaturated Fat: 5 g
  • Trans Fat: 0 g
  • Carbohydrates: 15 g
  • Fiber: 3 g
  • Protein: 10 g
  • Cholesterol: 40 mg