broccoli cauliflower cheese casserole with spoon in casserole dish
Print Recipe
5 from 11 votes

Cheesy Broccoli Cauliflower Casserole

Looking for an easy side dish? This Cheesy Broccoli Cauliflower Casserole is the perfect side dish for the weeknight! Even your kids will love this Broccoli and Cauliflower Casserole topped with cheese. Plus, it's perfect for a holiday side dish too! 
Prep Time15 mins
Cook Time30 mins
Total Time45 mins
Course: Side Dish
Cuisine: American
Keyword: Broccoli, Casserole, cauliflower, Grilled Cheese, Holidays, Side Dish
Servings: 8
Calories: 332kcal
Author: Julie Evink


  • 1 can condensed cream of mushroom soup 10.75 oz
  • 1 c. sour cream
  • 1 1/2 c sharp cheddar cheese shredded, divided
  • 1 can french fried onions 6 oz, divided
  • 1 package frozen broccoli florets 16 oz, thawed
  • 1 package frozen cauliflower florets 16 oz, thawed


  • Preheat oven to 325 degrees F. Grease 2 quart baking dish and set aside.
  • In a saucepan combine soup, sour cream, 1 c. cheese and 1 1/4 c. fried onions. Stir over medium heat until blended. Add broccoli and cauliflower (thawed), stir until combined.
  • Transfer to prepared baking dish. Place in preheated oven and baked 25-30 minutes, uncovered. Top with remaining cheese and onions and place back in oven until cheese melts.


Calories: 332kcal | Carbohydrates: 18g | Protein: 10g | Fat: 24g | Saturated Fat: 12g | Cholesterol: 39mg | Sodium: 638mg | Potassium: 459mg | Fiber: 2g | Sugar: 3g | Vitamin A: 750IU | Vitamin C: 78.2mg | Calcium: 226mg | Iron: 1.1mg