For a hearty breakfast, make this delicious sausage breakfast casserole that's loaded with breakfast sausage, colorful veggies, and melty cheddar cheese. It's the perfect dish to start your day with that is easy to prepare with pantry ingredients and easily feeds a large family!
Contents
🌟 Why this recipe works
Breakfast casserole recipes like this breakfast casserole with sausage are great for mornings, brunch, or lunch! They are easy to prepare, fill you up for the day ahead, and are the perfect dish to use up any leftover meat and veggies you might have in the fridge.
Check out our other breakfast casseroles, French toast casserole, breakfast casserole with bacon, tater tot casserole, and hash brown casserole for more delicious flavors.
However, this easy breakfast casserole with sausage is one of our favorites as it is packed with cooked sausage and potatoes and flavored with hearty veggies, herbs, and garlic. The egg mixture and melted cheese hold everything together, making each slice the ideal grab-and-go meal.
Plus, you can make this breakfast casserole ahead of time so you can assemble it the night before and bake it in the morning for an easy breakfast that doesn't take too much time or effort. Kids will love it!
Overall, this classic breakfast casserole with sausage is simple, flavorful, and delicious. It's sure to be a hit with family and friends alike any day of the week. And why not also try my belgian waffle and buttermilk biscuits with some chocolate gravy on top! Yum!
🍽 Key Ingredients
This delicious sausage breakfast casserole recipe is made with a combination of pantry ingredients, you likely already have on hand.
Breakfast sausage - To give the casserole a juicy meaty texture, you'll need some cooked and chopped sausage.
Egg mixture - A combination of eggs and milk are whisked together and poured over the casserole to ensure everything binds nicely together.
Onion, bell pepper, and garlic - These aromatics bring a nice savory flavor to the casserole.
Frozen potatoes - Frozen diced potatoes are used in this recipe as they don't need to be thawed or cooked.
Sharp cheddar cheese - You'll need some shredded sharp cheddar cheese for the perfect meltiness and flavor.
Seasonings - To bring out all the flavors, you'll need some dry mustard, salt, and pepper.
Green onions - A few chopped green onions are sprinkled on top of the cheese to add crunch and color.
Substitutions
You can customize this sausage breakfast casserole to your preferences. Here are some ingredients you can swap out for different flavors:
Ground sausage
You can use ground turkey, chicken, beef, or Italian sausage instead.
Frozen potatoes
Shredded hash browns can be used instead of frozen potatoes.
Milk
For a creamier texture, use half and half or a mixture of milk and heavy cream instead.
Cheese
Although we prefer our casserole with cheddar, you can use another cheese of your choice, such as Monterey Jack or Colby.
🔪 How to make
This easy sausage breakfast casserole is simple to make and requires minimal effort. With a few pantry staples, you can put together this delicious breakfast casserole that is sure to please everyone in the family!
Preparations
- Finely dice the onions, garlic, and bell pepper.
- Preheat the oven to 350 degrees Fahrenheit (177 degrees Celsius) and grease a casserole or baking dish with nonstick cooking spray, and set aside.
Cooking instructions
Step 1
Heat a large skillet over medium-high heat and cook the sausage until cooked and no longer pink. Break the sausage into small pieces as it cooks.
Tip: Remove the brown sausage to a plate lined with paper towels to soak up the grease.
Step 2
Reduce the heat to medium and add the onion and red pepper to the skillet, cooking for a few minutes until tender, then add the minced garlic and cook for 2 minutes.
Step 3
Beat the eggs in a large bowl and whisk in the milk.
Step 4
Stir in the cooked vegetables, sausage, frozen potatoes, 1 cup of shredded cheese, and season with dry mustard, salt, and pepper.
Step 5
Pour the mixture into the prepared casserole dish and top with the remaining cheese and chopped green onions.
Step 6
Bake in the preheated oven for 40-45 minutes until the eggs are firm and the top is slightly golden brown.
Step 7
Remove the baked casserole from the oven and let it rest for 10 minutes before slicing it into squares and serving.
💭 Cooking tips
Do not thaw the frozen potatoes
Add the frozen hash browns or cubed potatoes straight from the freezer rather than defrosting them, as they will release too much liquid that will affect the texture of the dish.
Draining the cooked sausage
It is important to drain the sausage on paper towels to absorb any excess grease that may make the casserole too greasy.
📖 Recipe Variations
This sausage breakfast casserole is so versatile and can be adapted to your liking. Here are some delicious variations you can make:
Sausage breakfast casserole with cornflakes topping
Give your casserole a lovely crunchy topping by crushing 1 cup of cornflakes and sprinkling them over the cheese.
Sausage and bacon breakfast casserole
For a heartier casserole with more flavor, cook 6 slices of chopped bacon with the sausage.
Spicy sausage breakfast casserole
If you like your food spicy, use half a pound of breakfast sausage and half a pound of spicy chorizo with their skins removed.
Crescent roll sausage breakfast casserole
If you have a package of crescent rolls in the back of your pantry, you can use them as a base for this casserole. Cut and lay the crescent roll sheets on the bottom of the casserole dish and then pour the mixture on top.
🥗 What to serve with
Sausage breakfast casserole can be enjoyed on its own, but you can also pair it with a variety of flavorful recipes for breakfast or lunch.
Bacon egg & cheese muffins: These savory muffins are an ideal side dish to the casserole that uses similar ingredients.
Baked eggs avocado: A simple and healthy dish that is full of flavor and easy to prepare
Peanut butter chocolate chip banana bread: This moist banana bread flavored with chocolate chips and smooth peanut butter is a fantastic sweet pairing to the savory dish.
Cranberry and walnut zucchini bread: The crunchy walnuts, chewy cranberries, and moist bread make this a great accompaniment to the casserole.
Cinnamon rolls: For a sweet and sticky treat, serve this ultimate cinnamon roll recipe with your sausage breakfast casserole. Also crepes filled with nutella for those with sweet tooth.
🙋 Frequently asked questions
Can I make this breakfast sausage casserole in advance?
To make this breakfast casserole ahead of time, assemble it the night before and keep it in the fridge overnight. In the morning, pop it in the oven and bake!
Why is my breakfast casserole soggy?
If your casserole is soggy, it might be because there is too much liquid in the mixture. To avoid this, make sure to drain the cooked vegetables and sausage before adding them.
🧊 Storing and ♨️ reheating
Sausage breakfast casserole is the perfect grab-and-go breakfast that you can enjoy throughout the week for an easy morning meal.
Fridge - You can store leftovers in the fridge in an airtight container for up to 3 days.
Freezer - To freeze breakfast casserole with sausage, let it cool completely and transfer it to a freezer-safe container. It will keep well in the freezer for up to 3 months.
Reheat - The best and most convenient way to reheat leftover casserole is in the microwave. 1 minute is all it needs to heat up a slice of this casserole. Alternatively, if you don't have a microwave, you can reheat it in the oven or skillet for 8-10 minutes until hot.
👪 Serving size
This sausage breakfast casserole yields 6 large slices, which is enough to feed a family of 6. You can also make 2 or 3 of them to freeze and bake whenever you want.
Although this hearty dish is a great breakfast option, you can enjoy this breakfast casserole with sausage meal any time of the day. With its rich flavors and easy-to-assemble instructions, it makes the perfect meal to start your day - and can be easily tailored to your taste using different fillings. I hope you love it as much as we do!
Love this recipe? Please leave a 5-star 🌟rating in the recipe card below and/or a review in the comments section further down the page.
Try one of my comfort dinner recipes for your next family meal! And if you have any questions, I'm here to help!
📋 Recipe
Sausage Breakfast Casserole
Equipment
- 9 x 13 baking dish casserole
Ingredients
- 1 pound Breakfast sausage
- ½ large Yellow onion - diced
- 1 Red bell pepper - seeds removed and diced
- 3 cloves Garlic - minced
- 12 large Eggs
- 1 cup Milk
- 2 cups Frozen diced potatoes - you don't have to thaw or cook the potatoes
- 2 cups Shredded sharp cheddar cheese - divided
- 1 teaspoon Dry mustard
- 1 teaspoon Salt
- ½ teaspoon Black pepper
- 2 Green onions - chopped
Instructions
Preparations
- Finely dice the onions, garlic, and bell pepper.
- Preheat the oven to 350 degrees Fahrenheit (177 degrees Celsius) and grease a casserole or baking dish with nonstick cooking spray, and set aside.
Cooking instructions
- Heat a large skillet over medium-high heat and cook the sausage until cooked and no longer pink. Break the sausage into small pieces as it cooks.
- Remove the brown sausage to a plate lined with paper towels to soak up the grease.
- Reduce the heat to medium and add the onion and red pepper to the skillet, cooking for a few minutes until tender, then add the minced garlic and cook for 2 minutes.
- Beat the eggs in a large bowl and whisk in the milk. Stir in the cooked vegetables, sausage, frozen potatoes, 1 cup of shredded cheese, and season with dry mustard, salt, and pepper.
- Pour the mixture into the prepared casserole dish and top with the remaining cheese and chopped green onions.
- Bake in the preheated oven for 40-45 minutes until the eggs are firm and the top is slightly golden brown.
- Remove the baked casserole from the oven and let it rest for 10 minutes before slicing it into squares and serving.
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