Breakfast is the most important meal of the day, but sometimes it can be a challenge to come up with new recipes to keep things interesting. 

If you’re looking for easy breakfast casserole recipes to make your mornings a little less hectic, look no further. 

These 27 breakfast casserole ideas are perfect for busy mornings, holiday breakfasts, or any time you need a hearty meal the whole family will enjoy.

27 Quick And Easy Breakfast Casseroles 

1. Hashbrown Breakfast Casserole 

This classic casserole combines shredded hashbrowns, egg mixture, shredded cheese, and a variety of meat like pork sausage or turkey sausage.

Simply layer the ingredients in a baking dish, cover with plastic wrap, and refrigerate overnight. In the morning, pop it in the oven and you’ll have a hot breakfast ready in under an hour. The great thing about this recipe is you can easily customize it with different meats, veggies, or types of cheese.

2. French Toast Casserole

Kids and adults alike will love this delicious recipe that tastes just like french toast without any of the mess of cooking it on the stove. Layer bread cubes with an egg mixture enriched with milk or cream and spices.

Top with fresh fruit like bananas or berries for a sweet touch. Refrigerate overnight then bake for a make-ahead breakfast casserole the whole family will enjoy.

3. Sausage Breakfast Casserole

Meat lovers will go crazy for this sausage breakfast casserole.

Brown breakfast sausage in a skillet then layer it with shredded potatoes, eggs, shredded cheese, and green onions in a casserole dish. Bake until set for an easy one-dish breakfast. For an even heartier meal, you can add diced bell peppers or fresh tomatoes.

4. Overnight Breakfast Casserole

This make-ahead casserole comes together the night before so all you need to do is pop it in the oven in the morning. Layer eggs, hashbrowns or tater tots, shredded cheese, and diced ham in a baking dish.

Cover and refrigerate overnight. In the morning, uncover and bake for a hot breakfast that’s ready in no time at all.

5. Slow Cooker Breakfast Casserole

For busy holiday mornings or weekends when you want to sleep in, try making a breakfast casserole in your slow cooker. Simply combine ingredients like eggs, cream of mushroom soup, shredded cheese, and your choice of meat like sausage or bacon. Cook on low then serve family style straight from the cooker.

6. Green Bell Pepper and Cheese Egg Casserole

This easy egg casserole recipe gets a little extra flavor from the addition of shredded green bell peppers. Mix eggs, milk or cream, shredded cheese, and diced peppers together then pour into a baking dish.

Top with more cheese then bake until set. Serve with fresh fruit like bananas or melon slices.

7. Baked French Toast Casserole

Kids and adults will love this sweet take on french toast. Layer bread slices with an egg mixture enriched with milk or cream, cinnamon, and a touch of vanilla. Sprinkle brown sugar on top then bake until golden brown. Serve warm with maple syrup for a delicious holiday breakfast.

8. Shredded Hashbrown Casserole

For a simpler take on hashbrown casserole, skip browning the potatoes and simply layer shredded hashbrowns with eggs, shredded cheese, and your choice of meat like bacon or ham. Bake until set for an easy casserole using pantry ingredients. Garnish with green onions for color and flavor.

9. Black Pepper and Cheese Egg Casserole

Give your basic egg casserole some extra zip by adding freshly ground black pepper. Mix eggs with cream, shredded cheese, and a generous amount of cracked black pepper.

Pour into a baking dish and top with more cheese. Bake until puffed and golden brown. Serve with hot sauce on the side for those who like it extra spicy.

10. Mozzarella, Tomato and Basil Egg Bake

For a breakfast casserole with Italian flair, layer sliced tomatoes and fresh basil leaves with beaten eggs, ricotta cheese, and shredded mozzarella. Bake until puffed and golden. The fresh flavors of tomato and basil make this a delicious change of pace from typical casseroles.

11. Make-Ahead Breakfast Casserole

When you need a hands-free breakfast option, make-ahead casseroles are your new best friend. Simply layer ingredients like eggs, shredded potatoes, cooked bacon or sausage, and shredded cheese in a baking dish. Cover tightly and refrigerate overnight. In the morning, uncover and bake for 30-45 minutes for a hot breakfast with minimal effort.

12. Brown Casserole with Hashbrowns and Sausage

Give hashbrown casserole an updated twist by browning the ingredients first. Cook bulk pork sausage in a large skillet until no longer pink, breaking it into small pieces as it cooks.

Add shredded hashbrowns and continue cooking and stirring until lightly browned. Transfer to a baking dish, pour beaten eggs over top, and bake until set.

13. Individual Breakfast Casseroles

For holiday mornings when you need individual portions, make mini casseroles in a muffin tin. Simply portion ingredients like eggs, shredded cheese, cooked bacon or sausage, and hashbrowns into each cup. Bake until puffed and golden brown. Serve warm straight from the tin.

14. Egg and Cheese Breakfast Bake

Keep this basic egg casserole recipe on hand for those days when you need a quick meal. Whisk eggs with milk or cream and season with salt and pepper. Pour into a greased baking dish and top with shredded cheese. Bake until puffed and golden. You can easily customize it with your favorite veggies or meat.

15. Red Bell Pepper Egg Casserole

Add color and flavor to any egg casserole with the addition of red bell peppers. Dice peppers and mix with beaten eggs, shredded cheese like cheddar or Monterey Jack, and a splash of cream or milk. Pour into a baking dish and top with more cheese. Bake until puffed and golden brown.

16. Classic Breakfast Casserole

This traditional casserole combines eggs, milk or cream, shredded cheese, and cooked breakfast meats like bacon or sausage.

Simply layer the ingredients in a baking dish, cover, and refrigerate overnight. In the morning, uncover and bake until hot and bubbly. It’s a complete meal the whole family will love.

17. Holiday Breakfast Casserole

When you’re hosting a crowd for the holidays, make this large casserole to feed a bunch. Layer eggs, cream of mushroom or celery soup, shredded cheese, and cooked breakfast meats like ham in a large casserole dish. Bake uncovered until set. Serve family style straight from the dish.

18. Overnight Casserole with Potatoes and Sausage

For a hearty casserole, layer shredded potatoes, cooked and crumbled breakfast sausage, shredded cheese, and eggs in a baking dish. Cover tightly and refrigerate overnight. In the morning, uncover and bake until hot and bubbly. You’ll have a filling breakfast ready with minimal effort.

19. Christmas Morning Casserole

Kids will love waking up to this festive casserole on Christmas morning. Layer biscuit dough, cooked and crumbled sausage, shredded cheese, and eggs in a baking dish.

Cover and refrigerate overnight. In the morning, uncover and bake until the biscuits are puffed and golden brown. Serve piping hot with syrup for a holiday breakfast the whole family can enjoy.

20. Hashbrown and Turkey Sausage Casserole

Swap out pork sausage for leaner turkey sausage in this classic hashbrown casserole. Cook turkey sausage patties until no longer pink, breaking into small pieces as they cook. Toss with shredded hashbrowns and lay in a baking dish. Pour beaten eggs over the top and bake until set.

21. Baked Breakfast Casserole with Fresh Potatoes

For a homemade twist on traditional hashbrown casserole, use freshly diced russet or red potatoes instead of preshredded hashbrowns. Toss diced potatoes with beaten eggs, shredded cheese, and cooked bacon. Bake until the potatoes are tender.

22. Green Onion and Shredded Cheese Egg Bake

Add bright flavor to any egg casserole with the addition of sliced green onions. Whisk eggs with cream or milk and season with salt and pepper. Pour into a greased baking dish and top with shredded cheese and sliced green onions. Bake until puffed and golden brown.

23. Southwest Breakfast Casserole

Spice up your morning routine with this southwestern-inspired casserole. Layer shredded potatoes, black beans, diced peppers and onions, shredded cheese, and eggs in a baking dish. Bake until hot and bubbly. Top with salsa, sour cream, and cilantro for an easy make-ahead breakfast.

24. Baked Sausage and Egg Casserole 

For a hearty casserole perfect for weekend breakfasts, layer cooked and crumbled breakfast sausage, shredded cheese, and eggs in a baking dish. Top with a little hot sauce for those who like some kick with their breakfast. Bake until set and puffed.

25. Slow Cooker Sausage and Hashbrown Casserole

Let your slow cooker do the work with this make-ahead breakfast. Toss shredded hashbrowns with cooked and crumbled breakfast sausage, shredded cheese, and eggs. Cook on low overnight then serve straight from the cooker. No morning prep required!

26. Overnight Egg and Broccoli Casserole 

Add some veggies to your morning routine with this broccoli casserole. Mix eggs with shredded cheese, a 10oz package of frozen broccoli florets, and cream or milk. Pour into a baking dish, cover, and refrigerate overnight.

Bake uncovered in the morning for an easy make-ahead breakfast.

27. Make-Ahead Frittata Casserole

Frittatas make a perfect hands-free breakfast casserole. Simply mix eggs with your favorite veggies like spinach, tomatoes, onions and peppers. Pour into a greased baking dish, top with shredded cheese.

Cover and refrigerate overnight. Bake uncovered until puffed and golden brown.