Sausage Hashbrown Breakfast Casserole! An easy, naturally gluten-free, make-ahead breakfast everyone will love!
This sausage hashbrown breakfast casserole is a total crowd-pleaser! It’s full of flavorful sausage and veggies and is one of my favorite recipes for a holiday breakfast.
Whether it’s Christmas morning or just a busy morning, are so many times when it’s helpful to have an easy, make-ahead breakfast!
I’m always on the hunt for recipes like this for Christmas breakfast or when we have company in town. It’s so convenient to assemble everything the night before, keep it in the fridge then bake it off in the next morning.
Nobody wants to be sautéing sausage and creating dirty dishes on Christmas morning!
VIDEO: How to Make It
Why You’ll Love this Recipe
- Flavorful and crowd-pleasing
- Overnight breakfast casserole option!
- Naturally gluten-free
- Easily made dairy-free!
Ingredients You’ll Need
Here are a few notes on the key ingredients you’ll need for this easy hashbrown breakfast casserole.
- Hashbrowns: I like to use frozen shredded hash browns. You could also make this with frozen tater tots.
- Bell Peppers: You can use any color you like, except green bell peppers. I like to use red bell pepper so it contrasts with the green spinach in this breakfast bake!
- Cheese: You can make this with cheddar cheese, moneterey jack, pepper jack or dairy-free cheese. I usually make this with VioLife dairy-free cheese.
- Breakfast sausage: Use raw, uncooked ground sausage. I usually use Jimmy Dean Natural pork sausage. You could also use turkey sausage Italian sausage!
I love having a savory breakfast option to go along with something sweet. When we make cinnamon rolls or monkey bread for a special breakfast I always like to serve this hashbrown casserole alongside.
The older I get the more I need protein with breakfast – especially when we’re having a sweet treat! (PS try these gluten-free donuts for a breakfast treat!)
How to Make Gluten-Free Breakfast Casserole
The first step to making delicious breakfast casserole is to cook the sausage and vegetables in a large skillet over medium heat. The onions and peppers in this casserole won’t cook anymore once they are mixed into the the casserole – so I like to get them nice and soft while I brown the sausage mixture.
After the veggies have cooked, add the spinach and let it wilt for just a few minutes. I also love the pretty colors in this casserole with the the red pepper and spinach!
Many breakfast casseroles use soaked bread for texture – but I keep this breakfast casserole gluten-free by adding frozen hashbrowns. They make it hearty and give it a great consistency.
Also be sure to add a good teaspoon salt and pepper when you mix everything in a large bowl so this casserole is flavorful once it’s cooked.
Make it over the holidays or the next time you have a big group of people to feed on a busy morning!
Make it Dairy-Free
This breakfast casserole is also really easy to make dairy-free. I actually almost always make it dairy-free when I prepare this for my family.
I use coconut milk in place of regular milk and vegan cheese in place of sharp cheddar to make this dairy-free. It tastes just as delicious and you’d never know it’s dairy-free with all the sausage and onions/peppers!
For another favorite recipe try these breakfast tacos and banana pancakes!
Once you’ve added all the ingredients into the casserole dish. You can cover the baking dish with plastic wrap and refrigerate the casserole. The next morning simply remove the plastic wrap and bake as instructed!
I hope you enjoy this sausage hashbrown breakfast casserole as much as we do! PS try topping it with hot sauce!
If you try this recipe be sure to leave me a comment/rating below. I’d love to hear from you!
Sausage Hashbrown Breakfast Casserole
- 1 lb pork breakfast sausage
- 3/4 cup red pepper diced
- 3/4 cup onion diced
- 10 oz frozen hashbrowns (2 cups )
- 1-2 cups spinach finely chopped
- 10 eggs
- 1 teaspoon salt
- 1/2 teaspoon pepper
- 1/2 cup whole milk or coconut milk
- 1 cup shredded sharp cheddar or dairy-free cheese, plus more for topping
- Preheat the oven to 350F. Lightly grease a 9×13 baking dish.
- Heat a skillet over medium-high heat. Add the sausage, onion and red pepper. Break up sausage into small pieces and cook until the vegetables have softened and the sausage is no longer pink. Drain any excess grease.
- Add the spinach and cook for another 1-2 minutes. Remove from the heat and let cool slightly.
- In a large bowl combine the remaining ingredients. Add the sausage mixture and mix until totally combined. Pour into the prepared baking dish. Top with the remaining cheese. At this point you can either bake the casserole or refrigerate the casserole and bake the next day.
- Bake for 25-30 minutes, uncovered until the eggs are set. Let cool slightly before serving. Enjoy!
Would this work with freshly grated sweet potatoes (assuming i can’t find them frozen)?
I would saute freshly grated sweet potatoes a bit before adding them to this. I think that will work great!
What kind of Coconut Milk do you recommend for this dish?
I recommend using full-fat canned coconut milk. You can also use boxed coconut milk but just be sure it’s unsweetened!
I am thinking of making this casserole dish for Easter brunch, serving approximately 12-14 adults, at around 1:30pm. My sis is making your fruit salad with yogurt recipe. Someone wanted to bring deviled eggs? Is this too many egg dishes? Also, what else can I serve? Another question: would I serve a GF dessert, even if I include muffins or scones with this meal? I guess I’m asking your opinion for other appropriate side dishes for this meal (or should I stick to the traditional ham, etc meal? Thank you for your input,
That sounds like a delicious menu so far! Here are some recipes I think would be delicious with that spread.
Gluten-Free French Breakfast Puffs: https://meaningfuleats.com/gluten-free-cinnamon-brown-butter-breakfast-puffs/
Gluten-Free Muffins: https://meaningfuleats.com/gluten-free-muffins-master-recipe/
Gluten-Free Scones: https://meaningfuleats.com/how-to-make-gluten-free-scones/
Gluten-Free Cheese Scones: https://meaningfuleats.com/gluten-free-cheese-scones/
I hope this helps! 🙂
I’ve made this recipe twice. Once with tater tots and once with hash browns. Both times they were made ahead and placed in the fridge overnight. I omitted the spinach for preference. While I like the casserole itself, it does take at least an hour to cook and set. I took the casserole out of the fridge while preheating the oven.
I think it’s a a tasty recipe, I just recommend allowing for more cooking time. I made it with coconut milk and
dairy free cheese which I don’t normally cook with, so I don’t know if that affects the cooking time.
Thanks for the helpful comment! Good to know you needed to add more time with those substitutions 🙂
Hi I’m confused, I don’t see hashbrowns mentioned anywhere in the instructions, are they cooked or not cooked before they get baked?
You add the hashbrowns in step 4 with the rest of the ingredients. You can add them in frozen or thawed – it works either way. I usually add them in frozen!
Can I use bacon pieces or ham pieces instead of sausage?
Cooked and crumbled bacon and diced ham both work great!
For the 3/4 cup diced onion, is it best to use sweet onion or green onion? I’ve made this yummy recipe before using a sweet onion but haven’t tried green onions.
If green onion is used, should the amount be reduced since green onions are stronger in my opinion?
Either one will work great! I would probably use 1/2 cup of green onion. You won’t need to saute green onions as long. I hope this helps!
What casserole pan is the one in the pictures. Where did you buy it?
I got that pan a loooong time ago for our wedding! I think it was from Macys. Sorry I can’t provide a link!
Would half and half as a sub for the whole milk or coconut milk?
Yes that will work great!
Definitely need to bake for an extra 20-30 minutes. Eggs were NOT done. Total: maybe 50 minutes.
Thanks for the feedback! Did you bake it from the fridge?
Do you use frozen hash browns or thaw them first?
You can do either way! I usually add them in frozen.
I made this for Christmas Day brunch, and it was fantastic; everyone loved it and most went back for seconds. Loved the use of the frozen hash browns to keep it gluten free since we have a couple of celiac members in the family. A few modifications I made: I didn’t have spinach, so blanched one bunch of asparagus (cut into two-inch sections), then sautéed them in light oil with some garlic and ground pepper. I used a 1/2 cup shredded mozzarella, 1/2 cup sharp cheddar, 1/2 cup pepper jack. I also added 1 tsp cumin into the egg mixture. I prepped all of the ingredients (sautéing the sausage and asparagus, shredding cheese, chopping onions and peppers, etc.) the night before and assembled in the AM before popping into the oven. Even with 8 people and some seconds, there was enough left over to send some home with folks, plus breakfast the next day — a bonus! This would also be good to make ahead of busy work week for pack and reheat breakfasts.
Those additions sound delicious! I need to try this with asparagus myself. Thanks for the comment! Glad you all enjoyed it.
I made the recipe exactly as described and it was delicious! I do have a question though. The nutrition info says 477 calories. Is that for the entire pan or each serving?
The nutrition information is based on 1/6th of the recipe. I hope that helps!
Do you think adding mushrooms would work in this casserole?
Yes that will work great!
If you are refrigerating over night, would it still bake for only 30 minutes? I was hoping to go to church and bake it while I’m gone. (Maybe an hour) thoughts?