This healthy egg casserole is extremely easy to make! It only has 5 basic ingredients, is high protein, and perfect for breakfast and meal prep.
How to make a healthy egg casserole
The steps are truly simple. Mix the ingredients, add toppings, bake, and eat. It really is that easy, but the secret to a perfect egg bake is quality ingredients, and personalization!

The only way to enjoy healthy food is to make healthy food the kind that you enjoy. Use this breakfast bake recipe as a guide and read all the tips!
Other than that, go wild with the toppings, sides, etc. Even healthy food can be enjoyable.
Eating healthy is more about what you add to your plate (extra veggies, protein etc) rather than what you take away.
Easy Healthy egg casserole recipe
This healthy egg casserole is a simple, high-protein recipe that’s perfect for busy families, Sunday brunch, or meal prep.
Busy doesn’t even begin to describe my family of 6 as we are always traveling between the Carolinas and further.
With 4 children ranging from 10 years to 3 months old, we need kid-friendly, fast, and hearty food at home always!

Cooking most of our meals from scratch means my kitchen is always a mess and i’m always looking for easy, fast, and picky-eater friendly meals.
With just a few ingredients — eggs, Greek yogurt, milk, and cheese — you’ll have a fluffy, satisfying breakfast bake ready in minutes.
Base Ingredients
- 6 Large Eggs
- 1/3 cup nonfat greek yogurt
- 1/3 cup milk (any kind!)
- 1/4 cup shredded cheese (I prefer a sharp cheddar but any kind works, even feta!)
- Salt, pepper, and seasonings to taste (try this seasoned salt for an all-in-one)
Instructions
1. Preheat oven to 325°F. Grease an 8×8 baking dish.
2. Whisk together eggs, greek yogurt, milk, and seasonings.

2. Add cheese and mix well
3. Additional toppings
- Sausage & Cheese: 1/2 cup cooked breakfast sausage

- Veggie egg bake: 1/2 cup diced bell peppers, onions, and chopped tomatoes

4. Pour mixture into prepared baking dish
5. Bake for 40-45 minutes until center is set and top is lightly golden.

6. Let cool, slice, and serve!
Tips for the best easy healthy breakfast casserole
- Bake low and slow at 325°F! Lowering the temperature allows the egg bake to cook a little more gently and makes the texture a little softer and creamier (goes a long way for those of us with egg texture issues).
- Bake until the center is set, this means, the center is not jiggly. If you are unsure, simply poke the center with a toothpick or butter knife, if it comes out clean, its ready!
- The sausage variation may take a few extra minutes since it is more dense
- If using frozen veggies, it’ll add a bit of baking time, but it will still be done when the center is no longer jiggly and a knife or toothpick inserted in the middle come out clean.
Healthy Egg Casserole Variations
Make it hearty: add 1/2 cup turkey, bacon bits, or sausage
Make it vegetarian: Omit any meats, and add veggies of your choosing like spinach/kale, mushrooms, or diced peppers and onions, etc for a no meat option.
Make it even lighter: Use egg whites instead, but be sure to save the yolks for another recipe!
Make it a side: pair with fluffy from scratch pancakes, a quick dinner roll, or this cinnamon roll pancake bake!

What to eat with a healthy egg casserole?
This is my favorite part! Depending on what flavor profile you choose, you can serve with many things to better balance your meal.
- fresh fruit
- avocado & siracha (my personal favorite)
- toast
- smoothie
- hash browns or potato hash
- If you didn’t add protein into the bake, a side of bacon or sausage links works great!
Make Ahead Egg Casserole
Turning this recipe into a make ahead egg casserole is super easy! Simply follow the recipe, once baked, let it cool, slice it, and you can store in the fridge for up to 4 days.
To reheat, simply pop it in the microwave or oven and heat until warm throughout.
Can you put greek yogurt in an egg bake?
Yes! Using greek yogurt not only adds protein, but also makes the casserole light and fluffy.
The casserole stays rich and creamy without needing to add butter or heavy cream. So it keeps the recipe satisfying and healthy!
This healthy egg casserole is one of those simple recipes that just works — easy to prep, easy to customize, and always a hit with the family.
Made with everyday staples, this breakfast bake is light, fluffy, and packed with protein. Try one of the variations or make it your own with whatever you have on hand!
If you found this post helpful, share it with a friend who might enjoy it too.

Easy Healthy Egg Casserole (Two Ways: Sausage & Veggie)
Ingredients
Method
- Preheat oven to 325°F. Grease an 8×8 baking dish.
- Whisk together eggs, greek yogurt, milk, and seasonings.
- Add cheese and mix well
- Additional toppings
- Sausage & Cheese: 1/2 cup cooked breakfast sausage
- Veggie egg bake: 1/2 cup diced bell peppers, onions, and chopped tomatoes
- Pour mixture into prepared baking dish
- Bake for 40-45 minutes until center is set and top is lightly golden.
- Let cool, slice, and serve!

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