Cheesy Vegetable Breakfast Casserole

Breakfast casseroles are one of my favorite ways to eat breakfast. This Cheesy Vegetable Breakfast Casserole brings together the best of all the worlds!

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com


 

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd!

What happens when you need to make breakfast for a group, but you didn’t go to the store? You take all the stuff you have in the fridge and prepare and delightfully easy, tasty and semi-healthy breakfast casserole with Cheesy Vegetable Breakfast Casserole!

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

My usual go-to breakfast when we have house guests or on special occasions is my family recipe for Chile Relleno Casserole, but on this occasion, the house guests were unexpected.

Use any leftover veggies you can scrounge from your refrigerator, cover in cheese and then egg.

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

The Cheesy Vegetable Breakfast Casserole went so fast, I only got a little corner (a delicious crusty corner) and ended up making it again the following weekend.

Since I didn’t have a house full of folks, I cut the Cheesy Vegetable Breakfast Casserole into single size servings and then froze them individually to take to work for breakfast.

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

Many people may not know that the trick to fluffy restaurant-style scrambled eggs is flour or pancake mix. Some use powder mix, like Bisquick, and others use the prepared batter.

I tend to use flour and on this date happened to have whole wheat. Flour helps give the eggs body, keeps them fluffy and improves on the flavor, leaving you with a towering slice instead of a limp, thin slice.

You can add a bit of flour to any scrambled egg mixture, but you can also easily leave it out if you choose.

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

There are two other ways to make your eggs super fluffy. The first is to whip them really well. Not just a few whisks, I am talking an immersion blender or whisk attachment on an electric mixer and beat until frothy.

The second way is to separate the yolks from whites and beat them separately. Whisk egg whites until thick, frothy and nearly doubled in size. Gently fold these into your egg yolks.

Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

Milk or half & half prevents your eggs from drying out, although with this recipe it can easily be omitted since the vegetables added will also emit liquid while cooking.

Flour can also be omitted and the recipe will stay the same, just will lack a tiny bit of height.

If you’d like to learn about freezing casseroles, check out this guide!

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Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com
Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! #vegetablecasserole #breakfastcasserole www.savoryexperiments.com

Cheesy Vegetable Breakfast Casserole

4.26 from 43 votes
Cheesy Vegetable Breakfast Casserole uses fluffy eggs with broccoli, bell pepper, onion and cheese to make a delightful breakfast that is perfect for feeding a crowd! 
Prep Time: 15 minutes
Cook Time: 55 minutes
Total Time: 1 hour 10 minutes
Servings: 12

Ingredients

Instructions

  • Heat oven to 350 degrees. Coat 9×13 baking dish with cooking spray.
  • Toss onion, bell peppers, broccoli and 1 cup cheese into cooking dish, spreading evenly.
  • In a medium mixing bowl, whisk eggs, ground mustard, half and half and whole wheat flour. Pour mixture over vegetables and cheese.
  • Bake uncovered for 45 minutes. Remove and top with remaining 1 cup cheese. Return to oven for 10 minutes.
  • Allow to rest for 5-10 minutes before serving. Enjoy your Cheesy Vegetable Breakfast Casserole!
  • If you’ve tried this recipe come back and let us know how it was! 

Nutrition

Calories: 154 kcal, Carbohydrates: 3 g, Protein: 10 g, Fat: 11 g, Saturated Fat: 5 g, Cholesterol: 159 mg, Sodium: 175 mg, Potassium: 121 mg, Vitamin A: 470 IU, Vitamin C: 7.2 mg, Calcium: 172 mg, Iron: 0.9 mg
Author: Jessica Formicola
Calories: 154
Course: Breakfast
Cuisine: American
Keyword: breakfast casserole, cheese casserole
Did you make this recipe?I’d love to see your recipes – snap a picture and mention @savoryexperiments or tag #savoryexperiments!
Jessica Formicola in her ktichen

About the Author

Jessica Formicola

Jessica the mom, wife and food lover behind Savory Experiments. She is obsessed with butter, salt and bacon and spends all her time in the kitchen and behind a camera. Jessica is a contributor to PopKitchen by Parade, Better Homes & Gardens, The Daily Meal Food + Travel and more!

Read More About Jessica

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Questions and Reviews

  1. I plan to make this casserole for a brunch on Saturday. Can I bake it the night before? And if so, how do I reheat it? Also, what would you suggest as a substitute for the bell peppers (which don’t agree with a lot of people)? Thank you!

    1. Hi Jay, you can just leave the bell peppers out and double the other veggies.
      Bake it the night before, wait until it is fully cooled, cover and refrigerate, then reheat at 300°F for about 15-20 minutes or until the internal temperature reaches 145°F.

  2. Good morning,
    Just wondering…. why the mustard and flour? Does the mustard add flavor and does the flour thicken?
    Thanks in advance
    T

    1. Hi Tiffany! Yes, mustard adds flavor and flour makes it fluffier, like it does for cake or cookies. You can omit either, the casserole will just be a little flatter.

  3. 5 stars
    You got me at broccoli and cheese! I love this combination so much! Also, red bell pepper is my favorite kind of pepper, so this recipe is truly fits my taste! Adding whole wheat flour is a great tip, thanks for that! – Love, Anna

    1. Nancy, You sure can! It might not need the entire 55 minutes to bake though, it will depend greatly on the depth of your pan, just keep an eye on it. I have also made a whole batch and then frozen the rest in single servings so I could take them to work for breakfast.

    1. Good question, Megan! Many people may not know that the trick to restaurant style scrambled eggs is flour or pancake mix. Some use powder mix, like Bisquick, and others use the prepared batter. I tend to use flour and on this date happened to have whole wheat. Flour helps give the eggs body, keeps them fluffy and improves on the flavor, leaving you with a towering slice instead of a limp, thin slice. You can add a bit of flour to any scrambled egg mixture, but you can also easily leave it out if you choose.
      I’m going to add this information to the post body since I’m sure you aren’t the only one who is curious. Thanks!