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    Home ยป Recipes ยป Breakfast

    Breakfast Casserole

    Published: 01/13/2025 ยท Updated: 01/13/2025 by Grump ยท This post may contain affiliate links ยท 2 Comments

    Jump to Recipe

    As the saying goes...breakfast is the most important meal of the day. That's why I created this perfect Breakfast Casserole! Think of it as an oven-baked version of all your breakfast favorites. It starts with a layer of hashbrowns, followed by a sausage, onion, and pepper skillet, followed by cheese and a layer of eggs. It's super easy to make!

    Looking for my breakfast recipes? Try my French toast or pancakes next!

    fork cutting off chunk of breakfast casserole on plate.

    About This Recipe

    Recently, I've been looking for more savory breakfast ideas. Classics like waffles and pancakes are great, but I must admit, I prefer savory breakfasts over sweet ones. Sweet breakfasts always make me feel very sleepy afterward. Not a great way to start the day!

    If you feel the same way, this breakfast casserole is the answer! It's incredibly easy to make and leaves you feeling very satisfied. It only took me about 15 minutes to put together and then another hour of baking.

    If your mornings are tight on time, you can also make it the night before. Just assemble the casserole without the eggs and refrigerate overnight. In the morning, mix the eggs with milk, salt, and pepper, then pour it over the casserole and bake.

    Key Ingredients

    ingredients prepped in bowls.

    Hashbrowns: You will need 6-8 hashbrowns for this, depending on the size of your hashbrowns and casserole dish. Basically, you just need enough to fill the bottom of the baking dish.

    Pork sausage: I recommend using breakfast sausages. But any style of pork sausage can work.

    Onions: I used a yellow onion.

    Bell peppers: I used half a red pepper and half a green pepper so I could get a nice color in the picture. Feel free to use one or the other.

    Cheddar cheese: I used 1 cup but feel free to use up to 2 cups if you like it extra cheesy.

    Eggs: You will need 8 eggs for this recipe, so make sure you have enough.

    Milk: Any percentage of milk.

    Instructions

    hashbrown patties arranged on bottom of baking dish.

    STEP 1: Arrange the hashbrowns in the bottom of the baking dish. Mine fit perfectly with six. If you have extra space, you can cut a hashbrown to fill it up.

    ground sausage and onions being cooked in skillet.

    STEP 2: In a large skillet, cook the sausage over medium-high heat until no longer pink. Add the onions and cook for 1 minute.

    bell peppers mixed with sausage and onions in pan.

    STEP 3: Remove from the heat and stir in the bell peppers.

    sausage, onion, and bell pepper mixture poured on top of hashbrowns.

    STEP 4: Pour the sausage mixture on top of the hashbrowns.

    egg mixture whisked together in bowl.

    STEP 5: In a separate bowl, whisk together the eggs, milk, salt, and black pepper.

    egg mixture pour over cheese in casserole dish.

    STEP 6: Sprinkle cheese on top of the sausage mixture, then pour the egg mixture all over.

    overhead shot of breakfast casserole after baking.

    STEP 7: Bake for 50-60 minutes or until the eggs are set in the middle. You can use a knife to cut through, and if the eggs are still runny, continue cooking.

    ๐Ÿ“‹ Recipe

    fork cutting off chunk of breakfast casserole on plate.

    Breakfast Casserole

    This is the ultimate breakfast casserole. It's easy to make and a great way to start your day.
    5 from 1 vote
    Print Recipe Pin Recipe SaveSaved!
    Prep Time 15 minutes mins
    Cook Time 1 hour hr
    Total Time 1 hour hr 15 minutes mins
    Course Breakfast
    Cuisine American
    Servings 6 people

    Ingredients
      

    • 6-8 frozen hash brown patties
    • 1 pound pork sausage
    • 1 small yellow onion (finely diced)
    • ยฝ red bell pepper (diced)
    • ยฝ green bell pepper (diced)
    • 1 ยฝ cups shredded cheddar cheese (divided)
    • 8 large eggs
    • 1 cup milk
    • ยฝ teaspoon salt
    • ยฝ teaspoon black pepper

    Instructions
     

    • Preheat the oven to 350ยฐF and grease a 3-quart baking dish.
    • Arrange the hashbrowns in the baking dish.
    • Heat a large skillet over medium-high heat. Add the sausage and cook until browned, breaking up the sausage into small pieces as it cooks. Add the onions and cook for another 1-2 minutes. Remove from the heat and mix in the bell peppers.
    • Add the sausage mixture to the dish. Sprinkle on the cheese.
    • In a large bowl, whisk together the eggs, milk, salt, and black pepper. Pour over the baking dish.
    • Bake uncovered for 50-60 minutes or until the eggs are cooked through. You can use a knife to cut through the middle, and if the eggs are runny, continue cooking it for longer.
    • Serve with ketchup and enjoy!

    Notes

    Make Ahead: You can make this the night before. Follow the instructions through Step 5, but do not pour the egg mixture over the baking dish; keep them separate. Wrap the casserole and egg mixture with plastic wrap and refrigerate overnight. In the morning, pour the eggs over the casserole and bake.
    Nutrition information is calculated using an ingredient database and should be considered an estimate.
    Did you make this?Let me know how it was!

    Reader Interactions

    Comments

      5 from 1 vote

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      Recipe Rating




    1. Elizabeth Wood

      May 02, 2025 at 5:14 pm

      5 stars
      Super easy and everyone loves it.

      Reply
      • Grump

        May 02, 2025 at 7:07 pm

        So happy to to hear that, Elizabeth!

        Reply

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