Are you looking for a breakfast dish that gives you the warm fuzzies while also being packed with flavor? Look no further! Breakfast Sausage Casserole is the ultimate comfort food you never knew you needed in your life. It’s hearty, delicious, and super simple to whip up, making it perfect for busy mornings or family brunches.
Why Make This Recipe
What’s not to love about a dish that combines crispy hash browns, savory sausage, and gooey cheese? 😍 Plus, it’s like a big hug in a casserole dish. Whether you’re entertaining guests or just looking for a cozy breakfast at home, this recipe hits all the right spots. It’s also versatile—feel free to toss in any leftover veggies or change up the cheese.
How to Make Breakfast Sausage Casserole
Now, let’s get down to the nitty-gritty of making this dish. Trust me, following these steps will make you look like a rock star in the kitchen, and the smell? You’re going to have everyone wandering into your kitchen like hungry zombies.
Ingredients:
- 1/2 cup butter (1 stick)
- 1 (30-oz) package shredded hash brown potatoes (diced is okay, but shredded is my jam)
- Salt and pepper to taste
- 1 pound breakfast sausage (bulk, because why not?)
- 1/2 green pepper (chopped)
- 1/2 red pepper (chopped)
- 1/2 small onion (diced, no more than 3/4 cup)
- 1 & 1/2 cups shredded Monterey Jack cheese (packed)
- 1 & 1/2 cups shredded sharp cheddar cheese (packed)
- 8 large eggs
- 1 & 1/3 cups half and half (or cream, evaporated milk, or whole milk*, your call)
- 1 teaspoon seasoned salt
- 1/2 teaspoon kosher salt (or 1/4 teaspoon if using table salt)
- 1/2 teaspoon black pepper
- 1/4 teaspoon dry mustard (optional, but adds a nice touch)
Directions:
- Preheat the oven to 400°F (200°C).
- Potato Layer: Spread the frozen hash browns into a 9×13 inch dish. No need to thaw them first—get that oven working!
- Melt the butter in the microwave and drizzle it over the hash browns. Mix it all up and sprinkle with salt and pepper.
- Pop the dish in the oven and bake for 30-35 minutes until the potatoes are mostly cooked and beginning to brown. Remove and lower the oven temp to 350°F (175°C).
- Sausage Layer: While the potatoes cook, chop those peppers and the onion. Get all those veggies nice and tiny (or, skip them if you want to keep it simple).
- In a skillet over medium-high heat, sauté the sausage with the veggies until browned and fragrant, about 5-7 minutes. Drain any extra grease.
- Spread that glorious sausage mixture over the baked hash browns, or stir it in for a mixed delight.
- Top with Monterey Jack and cheddar cheese.
- In a large bowl or stand mixer, whisk together eggs, half and half, seasoned salt, kosher salt, black pepper, and dry mustard.
- Pour the egg mixture evenly over the casserole.
- Bake at 350°F for 35-45 minutes, until the edges are bubbly and slightly brown.
- Let it sit for 5 minutes before serving. Leftovers? You bet! Store them in the fridge for about 5 days.
How to Serve Breakfast Sausage Casserole
This casserole deserves to be served hot and steaming! You can easily slice it into squares and pair it with a side of fresh fruit or some crispy bacon—because who doesn’t love bacon? 😋 Drizzle a little hot sauce if you’re feeling spicy, or top it with avocado for some extra creaminess.
How to Store Breakfast Sausage Casserole
Leftovers? Don’t worry, you can stash them away in the fridge for up to 5 days. Just make sure you cover it to keep it nice and fresh. Pro tip: You can also freeze individual portions to easily reheat whenever you want a comforting breakfast without the fuss.
Tips to Make Breakfast Sausage Casserole
- Prep ahead: You can assemble this casserole the night before and pop it in the oven in the morning. Just make sure you’re ready to pour the egg mixture over it just before baking.
- Mix and match: Use whatever stash of cheese you have in the fridge! It’s a great way to use up leftovers.
- Get creative: Add some fresh herbs on top, or throw in diced tomatoes or spinach if you’re feeling adventurous!
Variation
Feel free to swap out the type of cheese or even use spicy sausage if you like a little kick. You can also toss in other veggies like mushrooms, kale, or zucchini. The sky’s the limit!
FAQs
Can I make this casserole in advance?
Absolutely! You can prep it the night before, refrigerate it, and bake it in the morning. Just add the egg mixture before popping it in the oven.Can I freeze Breakfast Sausage Casserole?
Yes! Freeze individual portions for a quick breakfast later. Just microwave when you’re ready to eat.What is the best way to reheat leftovers?
Microwaving is quick, but the oven will help restore some of that original crispiness! Just pop it back in at 350°F for about 10-15 minutes.
So there you have it! This breakfast sausage casserole is your go-to recipe for satisfying morning cravings with minimal hassle. What’s your excuse for not trying it yet? 😄

Breakfast Sausage Casserole
Ingredients
Hash Brown Layer
- 1/2 cup butter (1 stick)
- 30 oz shredded hash brown potatoes (diced is okay, but shredded is preferred)
- Salt and pepper to taste
Sausage Mixture
- 1 lb breakfast sausage (bulk)
- 1/2 green pepper (chopped)
- 1/2 red pepper (chopped)
- 1/2 small onion (diced, no more than 3/4 cup)
Cheese Topping
- 1 1/2 cups shredded Monterey Jack cheese (packed)
- 1 1/2 cups shredded sharp cheddar cheese (packed)
Egg Mixture
- 8 large eggs
- 1 1/3 cups half and half (or cream, evaporated milk, or whole milk)
- 1 teaspoon seasoned salt
- 1/2 teaspoon kosher salt (or 1/4 teaspoon if using table salt)
- 1/2 teaspoon black pepper
- 1/4 teaspoon dry mustard (optional)
Instructions
Preparation
- Preheat the oven to 400°F (200°C).
- Spread the frozen hash browns into a 9×13 inch dish without thawing them.
- Melt the butter in the microwave and drizzle it over the hash browns. Mix everything and sprinkle with salt and pepper.
- Bake for 30-35 minutes until the potatoes are mostly cooked and beginning to brown. Remove and lower the oven temperature to 350°F (175°C).
Cooking
- While the potatoes cook, chop the peppers and onion.
- In a skillet over medium-high heat, sauté the sausage with the veggies until browned and fragrant, about 5-7 minutes. Drain any extra grease.
- Spread the sausage mixture over the baked hash browns.
- Top with Monterey Jack and cheddar cheese.
- In a large bowl or stand mixer, whisk together the eggs, half and half, seasoned salt, kosher salt, black pepper, and dry mustard.
- Pour the egg mixture evenly over the casserole.
- Bake at 350°F for 35-45 minutes, until the edges are bubbly and slightly brown.
- Let it sit for 5 minutes before serving.
Notes
Printable Recipe Card
Want just the essential recipe details without scrolling through the article? Get our printable recipe card with just the ingredients and instructions.