Cozy Sausage Breakfast Casserole with Frozen Shredded Hashbrowns

Sausage hash brown breakfast casserole is a hearty Southern comfort dish that's perfect for breakfast or brunch. The frozen shredded hashbrowns are cooked in a skillet first to crisp them up, ensuring the casserole bakes up golden and never soggy. Layered with sausage, shredded Colby Jack cheese, and a simple egg and milk mixture. This easy casserole is oven-baked at 350°F for 40 minutes until set and golden. Serves 8.

square slices of hash brown caserole on small plates on an orange background.

Guys - I have to tell y'all something. Being a fulltime Southern food-blogger, I am constantly recipe testing. There are times when recipes come around that are massive hits in my family, and we demolish them. Recipes like cold and creamy spinach and artichoke dip in a bread bowl - that doesn't last 10 minutes around here!

When I made this hash brown breakfast casserole for the first time, we ate it all in 2 days (important side note: there were only 2 of us eating it - my husband and I - haha). Needless to say, this is now a staple that we love.

And my modern southern girl takes on casseroles, using no processed ingredients and simple to make, this checks all those boxes. Pro tip I found out when recipe testing...cooking the frozen hashbrowns in a skillet first to get them crispy so that the casserole doesn't have too much moisture and liquid in it, resulting in a soggy casserole that never sets. It requires a little extra cooking time, but the results are totally worth it - let show you!

square slices of hash brown caserole on small plates on an orange background

First - we are going to start by frying up the hashbrowns since that takes the longest, and then assemble everything else as it cooks.

butter and olive oil in a large skillet with a bag of shredded hash browns in the back.
Add olive oil and butter to a large skillet over medium high heat.
cooking shredded hash browns in a skillet with a wooden spoon.
Add in your frozen hasbrowns in an even layer.
Seasoning hash browns cooking in a skillet with salt and pepper.
Season with salt and pepper and let it cook, not stiring for about 5 minutes.
cooking shredded hash browns in a skillet with a wooden spoon.
Every 5 or so minutes, flip and stir the hasbrowns around and then press back into an even layer. This will help them get golden and crispy.
Crisping up hash browns in a skillet on the stove with a wooden spoon.
Cook for 20-30 minutes. You want crispy edges on a lot of it and for the pan to be golden brown.
Sausage and a wooden spoon in a large skillet on the stove.
While the hashbrowns are cooking, brown up your sausage in a skillet on medium heat.
Breaking up sausage with a utensil as it's cooking in a large skillet.
Break up into fine pieces as it cooks.
Cooling cooked sausage on a paper towel lined plate.
Once browned all the way through, let cool on a paper towel lined plate.
eggs, milk, and spices in a large bowl on the kitchen counter.
While those 2 things are cooking, add the eggs, milk, and spices to a large bowl.
whisking together an egg and milk mixture in a large bowl for a breakfast casserole.
Mix well.
a block of Colby jack shredded on a piece of parchment paper
Then shred your cheese - always shred from a block and don't use the preshredded bagged stuff. The flavor and the way this melts is a way better pay off for the extra 2 minutes this takes.
Adding shredded cheese to cooked hash browns in a skillet.
Add half of the cheese to the crispy hashbrowns and stir together.
A layer of hash browns and cheese in a greased 9x13 baking dish.
Add to a greased 9x13 baking dish in an even layer.
An even layer of sausage spread on top of cooked hashbowns in a baking pan.
Add the cooked sausage in an even layer.
Adding egg mixture to hash brown casserole baking pan.
Then pour over the egg. mixture, making sure all the hasbrowns are soaked.
Shredded cheese on top of hash brown casserole in a baking pan before going into the oven to bake.
Finally, sprinkle the rest of the cheese on top and bake in the preheated oven for 35-40 minutes or until the middle is just set and edges are golden brown.
sausage hash brown breakfast casserole in a baking dish right after coming out of the oven on an orange background.
Remove and let cool for 5 minutes before slicing and serving. Pair alongside with some fresh berries and creamy fruit dip for the perfect Southern weekend brunch!
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a slice of hash brown breakfast casserole on a small plate on an orange background

Cozy Sausage Breakfast Casserole with Frozen Shredded Hashbrowns


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Description

Sausage hash brown breakfast casserole is a hearty Southern comfort dish that's perfect for breakfast or brunch. The frozen shredded hashbrowns are cooked in a skillet first to crisp them up, ensuring the casserole bakes up golden and never soggy. Layered with sausage, shredded Colby Jack cheese, and a simple egg and milk mixture. This easy casserole is oven-baked at 350°F for 40 minutes until set and golden. 


Ingredients

Scale
  • 1 Tbsp butter
  • 1 Tbsp olive oil
  • 26 ounces frozen shredded hash browns
  • 1 tsp salt 
  • ½ tsp pepper
  • 1 pound breakfast sausage
  • 8 large eggs
  • 1 Cup milk
  • ½ tsp salt
  • ⅛ tsp black pepper
  • ⅛ tsp onion powder
  • ⅛ tsp cayenne pepper
  • 8 ounces Colby Jack cheese - shredded and divided


Instructions

  1. Preheat oven to 350°F and lightly grease a 9×13-inch baking dish.
  2. In a large skillet, add the olive oil and butter and turn on medium-high heat. Add in the frozen hash browns with 1 teaspoon salt and ½ teaspoon pepper. This will take about 20-30 minutes to cook - leave in a flat layer and turn every so often while it cooks. You want the potatoes to get golden brown and crispy.
  3. At the same time, in another large skillet, cook the sausage over medium heat (breaking up into small pieces) until browned and fully cooked. When it's finished, use a slotted spoon and cool on a paper towel-lined plate to drain any excess grease.
  4. In a large bowl, whisk together the eggs, milk, and the other spices until fully combined. 
  5. Stir half of he shredded cheese in with the cooked hash browns. Spread evenly into the bottom of the prepared baking dish.  
  6. Evenly layer the cooked sausage over the top.
  7. Pour the egg mixture evenly over the casserole. Top with the remaining cheese.
  8. Bake uncovered for 35-40 minutes, or until the middle is set and the edges are golden brown.
  9. Let rest for 5-10 minutes before slicing and serving.
  • Prep Time: 30 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast - casserole
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 scoop
  • Calories: 448
  • Sugar: 1.8 g
  • Sodium: 1017.1 mg
  • Fat: 29.1 g
  • Carbohydrates: 19.4 g
  • Fiber: 1.3 g
  • Protein: 27.5 g
  • Cholesterol: 276.1 mg
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