There’s something special about a dish that can bring everyone together, and this Egg Casserole does just that. It’s easy to prepare, packed with simple ingredients you probably already have, and perfect for starting your day on a hearty note. Whether you’re making breakfast for your family or serving brunch to friends, this casserole comes through every time, making your morning stress-free and delicious.

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I love making this casserole because it’s ready in under an hour and perfect for any holiday breakfast or weekend brunch. It’s a dish that everyone, from kids to adults, will enjoy, making it a staple for gatherings and mornings when you want something hearty without the hassle.
Ingredients You’ll Need
You’ll need all the ingredients in the photograph below.

How to Make Egg Casserole with Step-by-Step Instructions
Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.
Making this egg casserole is a breeze if you follow my straightforward steps.
Preheat and Prepare the Egg Mixture
Start by preheating your oven to 180ºC and greasing a baking dish with cooking spray.
In a large bowl, whisk together the eggs, sour cream, milk, 1½ cups of shredded cheese, salt, and pepper until smooth. Set the mixture aside for a bit.
Cook the Vegetables
Grab a large skillet and heat it over medium heat. Add the olive oil and toss in the green onions, diced green and red bell peppers, and red onion.
SERIOUSLY GOOD
CASSEROLES
37 EASY RECIPES designed for days when you want one dish to do all the work for you. Expect rich, mouthwatering layers that are just begging to be on your dinner table.
Immediate eBook download. No physical book available.
Includes ad-free recipes like:
∙ Breakfast Casserole
∙ Cheeseburger Casserole
∙ Four Cheese Ravioli Casserole
∙ Chicken Pot Pie Casserole
∙ Sweet Potato Casserole
...and much more!
Sauté for about 5-7 minutes until they’re soft and fragrant. Add the broccoli florets and cook for another 2 minutes, just until they start to soften.
Assemble and Bake
Spread the cooked vegetables evenly in the prepared baking dish. Pour the egg mixture over the top, making sure it covers all the veggies. Sprinkle the remaining ½ cup of shredded cheese on top.
Pop it in the oven and bake for 35-40 minutes, or until the casserole is golden brown and set in the middle.

Rest and Serve
Once out of the oven, let the casserole sit for a few minutes to set properly.
Slice it up and enjoy a warm, hearty meal!

Easy Egg Casserole with Vegetables
Ingredients
- 8 eggs
- 1 cup sour cream
- ¼ cup milk
- 2 cups shredded cheddar cheese divided
- salt and pepper
- 1 tablespoon olive oil
- 4 green onions sliced
- ½ green bell pepper diced
- ½ red bell pepper diced
- ½ cup red onion diced
- 1 cup broccoli florets
Instructions
- Preheat the oven to 180ºC (350ºF). Spray a baking dish with cooking spray.
- In a large bowl, whisk together the eggs, sour cream, milk, 1½ cups of shredded cheese, and a pinch of salt and pepper until the mixture is well combined. Set the bowl aside.8 eggs, 1 cup sour cream, ¼ cup milk, 2 cups shredded cheddar cheese, salt and pepper
- Heat a large skillet over medium heat and add the olive oil. Add the sliced green onions, diced green and red bell peppers, and diced red onion. Sauté for 5-7 minutes until the vegetables start to soften. Add the broccoli florets and cook for another 2 minutes until they are slightly tender.1 tablespoon olive oil, 4 green onions, ½ green bell pepper, ½ red bell pepper, ½ cup red onion, 1 cup broccoli florets
- Transfer the cooked vegetables to the prepared baking dish, spreading them evenly. Pour the egg mixture over the vegetables, ensuring they are well covered. Sprinkle the remaining ½ cup of shredded cheese on top.2 cups shredded cheddar cheese
- Bake the casserole in the preheated oven for 35-40 minutes, or until the top is golden brown and the center is set. Remove from the oven and let it rest for a few minutes before slicing and serving.
Video
Notes
- Cheese Choices Matter: Experiment with different cheeses like gouda or mozzarella for unique flavors. For an extra creamy texture, mix in a bit of cream cheese.
- Customize to Your Taste: Add your favorite vegetables or a handful of fresh spinach for more nutrients. Want to make it heartier? Include cooked, crumbled bacon or sausage.
- Add Flavor Boosts: Sprinkle garlic powder or paprika on top before baking for extra depth. Fresh herbs like chives or parsley can also provide a pop of color and flavor.
- Prevent Over-Browning: If the top starts browning too fast while the center is still cooking, cover it loosely with foil to ensure even baking.
- Check for Doneness: Insert a knife into the center—if it comes out clean, the casserole is done. A little movement is fine, as it will firm up while cooling.
- Let It Rest: Allow the casserole to sit for a few minutes after baking. This step helps it hold its shape when you cut into it.
- Prep Ahead for Ease: Save time by preparing the vegetables and egg mixture the night before. This way, your morning is as easy as placing it in the oven.
Nutrition
SERIOUSLY GOOD
CASSEROLES
37 EASY RECIPES designed for days when you want one dish to do all the work for you. Expect rich, mouthwatering layers that are just begging to be on your dinner table.
Immediate eBook download. No physical book available.
Includes ad-free recipes like:
∙ Breakfast Casserole
∙ Cheeseburger Casserole
∙ Four Cheese Ravioli Casserole
∙ Chicken Pot Pie Casserole
∙ Sweet Potato Casserole
...and much more!
Recipe Notes and Expert Tips
Use my tips to make your egg casserole the best it can be:
- Cheese Choices Matter: Experiment with different cheeses like gouda or mozzarella for unique flavors. For an extra creamy texture, mix in a bit of cream cheese.
- Customize to Your Taste: Add your favorite vegetables or a handful of fresh spinach for more nutrients. Want to make it heartier? Include cooked, crumbled bacon or sausage.
- Add Flavor Boosts: Sprinkle garlic powder or paprika on top before baking for extra depth. Fresh herbs like chives or parsley can also provide a pop of color and flavor.
- Prevent Over-Browning: If the top starts browning too fast while the center is still cooking, cover it loosely with foil to ensure even baking.
- Check for Doneness: Insert a knife into the center—if it comes out clean, the casserole is done. A little movement is fine as it will firm up while cooling.
- Let It Rest: Allow the casserole to sit for a few minutes after baking. This step helps it hold its shape when you cut into it.
- Prep Ahead for Ease: Save time by preparing the vegetables and egg mixture the night before. This way, your morning is as easy as placing it in the oven.
How to Store Leftover Egg Casserole
To keep your egg casserole tasting just as great the next day, proper storage is key.
First, let the casserole cool to room temperature before placing it in an airtight container. It can be stored in the refrigerator for up to three to four days.
When you’re ready to enjoy it again, reheat individual portions in the microwave or warm the entire dish in the oven at 180ºC (350ºF) until heated through. If using the oven, covering the dish with foil helps prevent the top from drying out.
For longer storage, freezing is a great option. Cut the casserole into portions and wrap each piece tightly in plastic wrap or place them in freezer-safe airtight containers. It can be frozen for up to two to three months.
When you’re ready to reheat, let the portions thaw overnight in the refrigerator. To maintain the best texture, reheat in the oven rather than the microwave whenever possible.
What to Serve with Egg Casserole
Egg casserole pairs beautifully with a range of sides to make a complete meal. For a lighter option, serve it with a fresh fruit salad or a crisp green salad.
If you’re looking for something more indulgent, buttery toast, crispy hash browns, or roasted potatoes are perfect complements. For an extra touch at brunch, add smoked salmon or slices of avocado to elevate the dish.
More Easy Casseroles and Recipes For You To Try
If you love casseroles, then you should check out these easy recipes!

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