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Broccoli and Cauliflower Casserole

Cheesy Broccoli and Cauliflower Casserole for Cozy Nights

This comforting Broccoli and Cauliflower Casserole combines cheesy goodness with wholesome veggies for a delightful side dish.
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Prep Time 15 minutes
Cook Time 30 minutes
Resting Time 5 minutes
Total Time 50 minutes
Servings: 6 servings
Course: Dinner
Cuisine: American
Calories: 400
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 2 cups Broccoli, fresh Provides structure and vibrant color.
  • 2 cups Cauliflower, fresh or frozen If frozen, thaw and drain before use.
  • 2 cups Sharp Cheddar Cheese, shredded Can substitute with mild cheddar or other cheese varieties.
  • 1 cup Sour Cream Offers creaminess and a slight tang; can substitute with Greek yogurt.
  • 1/2 cup Mayonnaise Helps bind the creamy sauce; substitute with Greek yogurt for healthier twist.
  • 1/2 cup Parmesan Cheese, grated Adds savory depth and helps the topping crisp.
  • 1 tablespoon Dijon Mustard Omit if allergic or replace with yellow mustard.
  • 1 teaspoon Garlic Powder Optional; fresh garlic can be used.
  • 1 teaspoon Onion Powder Optional; fresh onion can be substituted.
  • to taste Salt and Pepper Essential for flavor enhancement.
  • 1 cup Breadcrumbs Use gluten-free breadcrumbs for a gluten-free version.
  • 2 tablespoons Butter, melted Can use olive oil as a healthier alternative.

Equipment

  • Oven
  • large pot
  • Mixing Bowl
  • casserole dish

Method
 

Step‑by‑Step Instructions
  1. Preheat the oven to 350°F (175°C).
    Broccoli and Cauliflower Casserole
  2. Bring a large pot of salted water to a boil. Add broccoli and cauliflower florets, cooking for about 5 minutes until tender-crisp. Drain and plunge into an ice bath.
    Broccoli and Cauliflower Casserole
  3. After cooling, drain broccoli and cauliflower again to remove excess moisture.
    Broccoli and Cauliflower Casserole
  4. In a large mixing bowl, combine sour cream, mayonnaise, Dijon mustard, garlic powder, onion powder, and half of the sharp cheddar cheese. Mix until smooth and creamy.
    Broccoli and Cauliflower Casserole
  5. Gently fold in the cooled broccoli and cauliflower into the cheesy mixture.
    Broccoli and Cauliflower Casserole
  6. Spread the mixture evenly into a greased 9×13-inch casserole dish.
    Broccoli and Cauliflower Casserole
  7. In a separate bowl, mix breadcrumbs, melted butter, remaining cheddar cheese, and Parmesan until well combined.
    Broccoli and Cauliflower Casserole
  8. Sprinkle the breadcrumb mixture evenly over the casserole.
    Broccoli and Cauliflower Casserole
  9. Bake for 25 to 30 minutes until the topping is golden brown and the edges are bubbling.
    Broccoli and Cauliflower Casserole
  10. Let the casserole rest for about 5 minutes before serving.
    Broccoli and Cauliflower Casserole

Nutrition

Serving: 1servingCalories: 400kcalCarbohydrates: 30gProtein: 15gFat: 25gSaturated Fat: 15gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gCholesterol: 80mgSodium: 600mgPotassium: 500mgFiber: 3gSugar: 2gVitamin A: 500IUVitamin C: 70mgCalcium: 350mgIron: 1.5mg

Notes

Store leftovers in an airtight container for up to 4 days. Freeze for up to 2-3 months. Thaw in the fridge overnight before reheating.

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