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 casserole topped with cheese. Plus, it’s perfect for a holiday side dish too!

You want to know how to get your kids to eat the vegetables? Start with this loaded casserole! Beyond the cheese, beyond the sour cream and look past the fried onions, it’s nothing but vegetables! Anyway I can get those kids to eat vegetables is a win in my book. They loved this Broccoli Cauliflower Casserole so it’s going on my regular side dish rotation!

And your whole family will love it!

This has been a great side dish and I’ve served it at more family gatherings and it’s so popular on the buffet!

It’s one of my favorite meals for the holidays because it’s easy to make and can be made ahead a day or two, covered with foil and tucked into the refrigerator until you’re ready to heat it up. Pair it with my easy Crock Pot Turkey Breast and everyone will love it!

Easy, cheesy, delicious!

Ingredients for Broccoli Cauliflower Casserole

• Frozen Vegetables – Broccoli Florets and Cauliflower Florets
• Cream of mushroom soup
• Sour cream
• Sharp cheddar cheese
• French fried onions

Steps to Make!

• Prep – Preheat the oven. Grease the baking dish and set aside.
• Mix – In a saucepan combine the soup, sour cream,  cheese and fried onions. Stir over medium heat until blended. Add broccoli and cauliflower and continue stirring until combined.
• Bake – Transfer to the prepared baking dish. Place in preheated oven and bake 25-30 minutes, uncovered. Top with remaining cheese and onions and place back in oven until cheese melts.

Expert Tips

• When it comes to baking a casserole, glass or pyrex is your best choice. Both glass and pyrex take longer to heat up, but conduct heat well and get super hot. An oven-safe dish is a must. Another must? Dishwasher safe for easy clean-up!
• If you would like to want to use fresh vegetables you can but you would need to steam or roast them first. This is the perfect time to take a shortcut and use frozen vegetables. This is a terrific pantry-staple side dish!
• I recommend sharp cheddar cheese. It gives a tanginess to the recipe that makes it a real winner! Though you can certainly substitute with Monterey Jack or Provolone Cheese. If you do use a milder cheese a handful of Parmesan will add the sharp saltiness of the cheddar.
• Grab a block of cheese and grate it yourself because it will melt better! Pre-Shredded cheese has additives that hinder it from melting.

See that cheesy goodness? I don’t know what you’ll love more: the cheesiness of this casserole or the crunchy onions when all of this bakes up to golden, bubbly deliciousness! Mmmm!!!!

More easy vegetable casseroles!

• Got leftover ham? Make this easy Ham and Green Bean Casserole for dinner!
• Hosting the holidays? You can’t forget this easy Sweet Potato Casserole.
• Always a favorite at holidays is this easy Shredded Potato Casserole using frozen hash browns.
• A delicious twist on corn as a dish is Corn Pudding Casserole.

Trust me when I say you will love this recipe!!! It’s easy to make, can be made ahead and it’s full of cheesy goodness! I guess the only question is when are you going to make it? ? Leave a five-star comment below and tell me what you think!

If you make my recipe please tag me on Instagram  @julieseatsandtreats or #julieseatsandtreats. I love to see a picture of your casserole!!!

Did you make this? If you snap a photo, please be sure tag me on Instagram at @julieseatsandtreats or #julieseatsandtreats so I can see your yummy treat!

4.93 from 57 votes

Cheesy Broccoli Cauliflower Casserole

Looking for an easy side dish? This casserole is the perfect side dish for the weeknight! Plus, it's perfect for a holiday side dish too! 

Prep:15 mins

Cook:30 mins

Total:45 mins

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Ingredients

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

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Instructions

• 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.

Tips

Expert Tips

• When it comes to baking a casserole, glass or pyrex is your best choice. Both glass and pyrex take longer to heat up, but conduct heat well and get super hot. An oven-safe dish is a must. Another must? Dishwasher safe for easy clean-up!
• If you would like to want to use fresh vegetables you can but you would need to steam or roast them first. This is the perfect time to take a shortcut and use frozen vegetables. This is a terrific pantry-staple side dish!
• I recommend sharp cheddar cheese. It gives a tanginess to the recipe that makes it a real winner! Though you can certainly substitute with Monterey Jack or Provolone Cheese. If you do use a milder cheese a handful of parmesan will add the sharp saltiness of the cheddar. 
• Grab a block of cheese and grate it yourself because it will melt better! Pre-Shredded cheese has additives that hinder it from melting.

Nutrition Information

Calories: 332kcal (17%), Carbohydrates: 18g (6%), Protein: 10g (20%), Fat: 24g (37%), Saturated Fat: 12g (75%), Cholesterol: 39mg (13%), Sodium: 638mg (28%), Potassium: 459mg (13%), Fiber: 2g (8%), Sugar: 3g (3%), Vitamin A: 750IU (15%), Vitamin C: 78.2mg (95%), Calcium: 226mg (23%), Iron: 1.1mg (6%)

© Julie's Eats & Treats ®

We are not dietitians and recommend you seek a nutritionist for exact nutritional information. The information in the nutrition box is calculated through a program and there is room for error. If you need an accurate count, I recommend running the ingredients through your favorite nutrition calculator.