Low Calorie Cauliflower and Broccoli Casserole

Roasted Cauliflower and Broccoli Casserole

This Low Calorie Cauliflower and Broccoli Casserole is just 79 calories and has just 6 ingredients! This hearty side dish is great with any protein main dish you make. It’s especially great with roasted chicken though. I love to make it for holidays too, it’s a healthy dish and I love that I can have seconds and thirds without guilt.

Roasted Cauliflower and Broccoli Casserole

Ingredients You’ll Need:

  • Olive oil spray
  • ⅛ cup whole grain mustard
  • ¾ cup water 
  • 3 cups cauliflower florets
  • 3 cups broccoli florets
  • 1 yellow onion 
  • 4 slices provolone cheese

Low Calorie Cauliflower and Broccoli Casserole

Roasted Cauliflower and Broccoli Casserole

Healthy Cauliflower and Broccoli Casserole Meal Prep and Storage

Meal Prep: You can make the casserole ahead of time and bake, or store to bake later. Simply bake and cool, and cover. Then store (baked or unbaked) for later.
Storage: Will hold in the fridge for 5 days or the freezer for a month.
Reheating: If stored unbaked, bake according to the directions below (thaw out first if frozen). Or to reheat leftovers or pre-cooked, cover with foil and add to a 350 degree oven for 20-30 minutes until warmed through.

Roasted Cauliflower and Broccoli Casserole

Low Calorie Cauliflower and Broccoli Casserole

Roasted Cauliflower and Broccoli Casserole

Low Calorie Cauliflower and Broccoli Casserole

Lose Weight By Eating
This healthy Cauliflower and Broccoli Casserole needs just 6 ingredients and is packed full of flavor.
This healthy side dish is great for dinner, I like to serve it with roasted chicken, but it's great alongside steak, for chops, and even tofu steaks.
Special Tip: If you don't like mustard, see above. I have supplied you with more flavors in the "ingredients"section.
5 from 1 vote
Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes
Course Side Dish
Cuisine American
Servings 8 servings
Calories 79 kcal

Ingredients
 
 

  • Olive oil spray
  • cup whole grain mustard
  • ¾ cup water divided
  • 3 cups cauliflower florets
  • 3 cups broccoli florets
  • 1 yellow onion minced
  • 4 slices provolone cheese

Instructions
 

  • Preheat oven to 375 degrees, and spray a 9×13 baking dish with olive oil.
  • To a large bowl combine the mustard and 1/4 cup water and mix together.
  • Add the cauliflower and 1/2 cup water to a microwave safe bowl and microwave for 5 minutes until tender.
  • Carefully remove and drain, then add the cauliflower, broccoli, and onions to the mustard and toss well to combine.
  • Pour the veggies into the prepared baking dish, scraping any leftover mustard over the top.
  • Add the provolone cheese to the top, spreading out so you get melted cheese over the entire top, and spray with olive oil.
  • Add to the oven and bake for 20 minutes, then broil for 1-3 minutes (watch closely) until the cheese is melted.
  • Serve hot.

Nutrition

Serving: 1cupCalories: 79kcalCarbohydrates: 6.1gProtein: 5.4gFat: 4.1gSaturated Fat: 2.4gCholesterol: 10mgSodium: 163mgPotassium: 261mgFiber: 2.1gSugar: 2.1gCalcium: 133mgIron: 1mg
Keyword casserole, Healthy Cauliflower and Broccoli Casserole, Low Calorie Cauliflower and Broccoli Casserole, Side Dish
Tried this recipe?Let us know how it was!

About the Author

Hi, my name is Audrey Johns and I am a 4 time best selling cookbook author! All 4 of my low calorie cookbooks are published by HarperCollins (the oldest publishing house in the US!) and have been featured on prominent TV shows like The Today Show, Rachael Ray and The Doctors. I am a low calorie and healthy recipe authority and my delicious recipes are tried and loved by thousands of readers. 

After a one year 150 pound weight loss (and I’ve kept it off for 13 years!) I started sharing all of my low calorie recipes with the world. They are always all-natural and geared around weight loss and weight management. I have even made some of these recipes with my Biggest Loser pal Bob Harper! Check out my weight loss story, my best selling cookbooks, and my numerous TV appearances by clicking here.

Nutrition and Calories in Cauliflower Broccoli Casserole

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Roasted Cauliflower and Broccoli Casserole

Article History:

  • Originally written and published December 8, 2022 by Audrey Johns
  • Updated on May 4, 2023 by
  • Updated on September 19, 2023 by Audrey Johns