Easy Breakfast Sausage Casserole With Hash Browns and Avocado

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A Filling High Protein Breakfast Meal-in-One to Fuel Your Day

This easy Breakfast Sausage Casserole With Hash Browns is a simple breakfast recipe that will have everyone in the house up early and excited about the day.

I was just noticing that a lot of our titles include the word “easy”. Makes sense. We’re all for making homemade meals that are delicious and nutritious but also EASY! 👩🏽‍🍳

You can also easily adapt this to be a vegetarian dish by using vegetable sausage or veggie burgers. We’ve also provided different ethnic cuisine ideas to try as well.

Great for any day, this is especially great weekend fare, or, make prepare it on Sunday after noon and bake it Monday morning. As tempting as it is to sleep in, when the smell of this breakfast casserole starts wafting through the house, you just might think a herd of elephants is running towards the kitchen.

Don’t fret, it’s just your family members who are being drawn into the kitchen by aroma of your cooking! Having help getting everyone up early and ready on a Monday is a good thing!

Why Use Avocados in This Hashbrown Casserole?

We all need to up our healthy fats nowadays. Avocados not only add a creamy texture to this breakfast recipe but since they’re considered a superfood, they add a ton of healthy nutrients as well.

This is a great use for frozen avocado if you have any on hand. (And yes, you can freeze avocados)!

Health Benefits of Adding Avocado to Your Diet

The health benefits of avocados are pretty amazing! Your body can benefit from adding avocados to your diet daily.((https://www.webmd.com/diet/ss/slideshow-avocados-health-benefits))

Why are they so great? Avocados contain over a dozen vitamins and minerals and are most notably high in folate and with more potassium than a banana. You’re probably aware of the high fat content of avocados,, however it’s the monounsaturated fat, “good” fat that helps lower bad cholesterol.

The healthy fat and fiber content of avocados will help you feel fuller sooner, which can help with weight management if that’s a concern for you.

These are just a few of the reasons why avocados are great. Great taste and great for you can’t be beat.

Tips for the Best Breakfast Sausage Casserole

This sausage casserole isn’t hard but there are a few tips that are important to its success.

Grease the Pan

Even though there will be some grease that comes from the sausage patties, it’s not going to be enough. I recommend brushing the dish with avocado or olive oil, for healthier options, or butter if you prefer that emulsifying flavor addition. Just give the bottom of your glass casserole dish a thin, even coating.

Change to Suit Your Palate and Food on Hand

Change the Cheese

One of the easiest ways to change up the flavor of this sausage casserole dish is to change up the flavor of the cheese. I tend to use cheddar cheese in this recipe because that is what I like but you can use Colby jack, pepper jack, or any other type of favorite cheese on hand.

Change the Cuisine

MEXICAN: You can quickly transform this into a Mexican casserole by using Mexican or taco seasoning and Mexican cheese blend, and substitute the milk for salsa, enchilada or relleno sauce. Garnish with salsa verde and cilantro (or regular salsa if preferred).

ITALIAN: Alternately, you can transform it into an Italian breakfast (or dinner dish) by adding spaghetti sauce, Italian seasoning and an Italian cheese blend. Just substitute the milk for spaghetti sauce.

FRENCH: You can go French by using Herbs de Provence and serve with mediterranean vegetables or grilled asparagus. You can make it extra special by replacing the milk for the same quantity in a simple French bechamel sauce.

Breakfast Sausage Casserole Overnight

Yep, you guessed it. This easy casserole recipe is perfect for making up the night before. That means that once you wake up, you literally just have to pop it in the oven and it’s good to go.

While you’re getting ready for the day, the wonderful aroma will be wafting from the kitchen, just in time for a scrumptious breakfast without any more effort than putting it in the oven and serving it up.

Doesn’t get much better than that, right? For this reason we love making it ahead, and also making extra for leftovers on purpose to enjoy for several days throughout the week. Just change up the toppings if you like each time you dish it up and it gives it a fresh take on (what may well become) an old and faithful favorite breakfast casserole recipe.

This easy broccoli cheese egg bake is another favorite in our house.

Use Fresh Potatoes in Instead of Frozen Hash Browns

If you have the time and the potatoes, you can substitute the frozen store bought hash browns for fresh homemade . I just use frozen to save on my time and sanity. If you have the time and want to grate your own hash browns, go for it. It’s a great way to use up your potatoes and give it a nice texture as well.

I’ve also made this recipe with a bag of potato chunks before from the frozen aisle but I can say that I like the shredded hash browns more.

Breakfast Sausage Casserole Toppings

More on toppings for this egg casserole recipe. The great part about this casserole is that once it’s cooled, cut, and served, every person can top it with whatever they want to make it taste unique for them.

If you have a diverse group of palates to please, you can set out the equivalent of a topping bar, like you would for taco fixings or sandwich makings. Then folks can just go through the “buffet” line and add — or not — to their hearts’ content.

Toppings Good for Egg Casseroles

  • More shredded cheese
  • Diced onions
  • Fresh cilantro
  • Salsa –
    • tomato salsa
    • salsa verde
    • tomatillo sauce
  • Fresh jalapeño peppers (or pickled jalapeños peppers)
  • Hot sauce
  • Sour Cream

As you can tell, whatever you crave and like, use as a topping! It’s a simple way to keep this casserole dish fresh and new every time.

Ingredients Needed to Make Sausage and Hashbrown Casserole

For a quick glance on what you’ll need, this “cheat sheet” list gives you a good idea of what ingredients you’ll need to create this delicious breakfast casserole.

  • Precooked (frozen) breakfast sausage patties, thawed
  • Tomatoes
  • Avocados
  • Eggs
  • Milk
  • Frozen hash browns
  • Cheddar cheese (shredded)
  • Salt
  • Pepper
Breakfast sausage casserole with hash browns and avocado. serves 6-12. RecipesAndMe.com

Breakfast Casserole Storage Tips

If you’re lucky enough to have leftovers of this breakfast casserole, you can easily just store it in the fridge and enjoy it again the next morning, (or even later that day for lunch or dinner)!

Add it to a container with a lid and keep an air-tight seal on it. We use this casserole dish that comes with its own cover all the time.

The same goes for freezing this simple breakfast recipe. Put the leftovers in a freezer-proof container and add them to your freezer. This should keep it good for a couple of months, and when you’re ready to eat, just thaw and reheat.

This simple breakfast sausage casserole with hash browns recipe is a delicious and fun way to start the day. Perfect for a hearty morning meal!

If you’re looking for more great breakfast ideas, check out our Easy Breakfast Cheese Danish Recipe for when you want an amazing and simple sweet breakfast (or anytime) splurge. Or this Breakfast Quesadillas that’s a perfect and delicious for at home or breakfast to go as well.

Best breakfast sausage casserole with hash browns and avocado.
Breakfast Sausage Casserole With Hash Browns, super simple!

Breakfast Sausage Casserole With Hash Browns

Recipes and Me
This simple breakfast casserole recipe is so fast and easy to make!
Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Course Breakfast & Brunch
Cuisine American
Servings 12
Calories 385 kcal


  • 12 precooked frozen breakfast sausage patties, thawed
  • 2-3 sliced tomatoes
  • 2-3 sliced avocados
  • 12 eggs
  • 1 c. milk
  • 1 pound pkg. frozen hash browns thawed
  • 1 cup cheddar cheese shredded (you’ll need 2 cups total, divided)
  • 1 tsp. salt
  • ½ tsp pepper
  • 1 cup cheddar cheese shredded for topping


  • Preheat oven to 350°F and grease a 9" x 13" casserole dish with olive or avocado oil.
  • Layer with sausage, then top with tomatoes followed by avocado slices. NOTE: If your avocado is soft, it’s fine to mash it up and spread it over the sausage.
  • In a bowl, beat eggs and milk. Stir in all other ingredients. Pour hash and egg mixture over the sausage, tomatoes, and avocados.
  • Bake at 350 for 35-45 min or until well set. Top with extra cheddar right after pulling out of the oven so it melts all over the top. Top with salsa, sour cream and/or your toppings of choice.


Serving: 1gCalories: 385kcalCarbohydrates: 17gProtein: 17gFat: 28gSaturated Fat: 8gPolyunsaturated Fat: 18gCholesterol: 223mgSodium: 587mgFiber: 5gSugar: 1g
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