Casseroles are an excellent option for food prep at Christmas. Many can be made ahead of time and refrigerated until ready to be cooked. They take the stress out of Christmas Day!

A casserole is often a savory recipe with vegetables, sauce, and usually cheese. However, you don’t have to stick to savory!

Brioche and a vanilla custard mixture can be the base for many sweet and delicious breakfast casseroles! Take it up a level by using donuts instead or even cinnamon rolls!

1. Brown Butter Sweet Potato Casserole

Source: rainbowplantlife.com

Warming holiday spices are mixed into this sweet and salty dish. The crumble topping is the perfect contrast to the tender sweet potatoes.

When you brown the butter, it gives the mashed sweet potatoes a nutty aroma and taste. Mash in cinnamon, ginger, nutmeg, salt, and vanilla for flavor.

Mix brown sugar, almond flour, oats, and nuts to make the crumble. Add cinnamon, nutmeg, and maple syrup for a warm flavor throughout the dish.

2. Orange Cranberry Overnight French Toast Casserole

Source: maryswholelife.com

At Christmas, cranberries are a holiday favorite! Add them to this delicious overnight French toast dish for the morning.

Store your casserole in the fridge overnight. The bread soaks up all the delicious flavors! They are tart cranberries, zesty orange, sweet vanilla, coconut sugar, and cinnamon.

Add chopped pecan nuts to your casserole before baking to make it crunchy. Serve it warm with sweet maple syrup!

3. Breakfast Donut Casserole with Chia Seeds and Flax

Source: ottawamommyclub.ca

This unique take on a breakfast casserole has soft donuts buried beneath a crunchy topping!

The casserole is easy to make. Lay pieces of chopped cinnamon donuts in a pie dish and pour the healthy milk mixture on top! The health benefits come from chia seeds and flax.

Bake your casserole until the top of the donuts are browned and crunchy!

4. Christmas Breakfast Casserole

Source: lovinglivinglancaster.com

This savory breakfast casserole is meaty and colorful with a gooey cheese topping!

Mild pork sausage and red and green bell peppers are the main elements of your casserole. Add them to a baking dish with lots of cheese!

Mixing eggs, milk, salt, and pepper makes your casserole soft but firm. Sprinkle more cheese on top of your casserole before baking!

5. Sweet Potato Crunch Casserole

Source: yourhomemadehealthy.com

Sweet potato casserole with a crunchy pecan topping belongs on your Christmas table!

Mash tender sweet potatoes with butter, brown sugar, and vanilla. The natural caramelized taste of brown sugar is the perfect pairing for sweet potatoes.

Make your pecan topping with chopped nuts, brown sugar, butter, and flour. Add cinnamon for a spiced holiday flavor. Bake your casserole until the top is golden brown and crunchy!

6. Baked Overnight Eggnog French Toast Casserole

Source: windingcreekranch.org

Creamy eggnog is a staple of the Christmas season. It’s an excellent match for the warm French toast and crunchy topping in this overnight casserole!

French bread cubes are covered in a spiced custard to absorb the flavors overnight. Mix eggnog, eggs, vanilla, and sugar for the custard. Warming cinnamon and nutmeg are the perfect holiday spices.

Make your streusel topping with flour and brown sugar. Add cinnamon and nutmeg for the spiced flavor throughout. Sprinkle over the casserole and bake until it’s golden brown and crunchy!

7. Brussels Sprouts Casserole

Source: primaverakitchen.com

Each bite of this savory casserole is filled with Brussels sprouts and gooey cheese!

Tender Brussels sprouts are one of the highlights of this dish. They’re covered in a tasty, creamy, cheesy mixture. Combine cream cheese with half and half. Add garlic and onion powder for flavor.

Add the mixture to a baking dish with the steamed sprouts and top with creamy mozzarella. Bake until the cheese is melted and bubbling, and garnish with fresh parsley before serving!

8. Cinnamon Cranberry Overnight French Toast

Source: twokidsandacoupon.com

Easy cinnamon cranberry overnight French toast is the perfect festive breakfast for Christmas morning!

Slices of French bread are smothered in a warming spiced custard. Make this with eggs, milk, and cinnamon. Pour all over your bread into a baking dish and refrigerate it overnight.

Before baking, add fresh cranberries and more cinnamon to the dish. Bake until the toast is lightly browned and the custard is set!

9. Broccoli Rice Casserole

Source: corriecooks.com

Ooey gooey cheese, wholesome broccoli, and fluffy rice make this easy, delicious casserole.

Steamed broccoli and rice form the bulk of your casserole. Add chopped yellow onion for a hint of sweetness. Mix with cream of mushroom soup and lots of shredded cheddar!

Add breadcrumbs to your casserole with more cheese for a crispy, golden topping!

10. Cheesy Spaghetti Squash Casserole with Sausage and Spinach

Source: kristineskitchenblog.com

This spaghetti squash casserole is meaty, cheesy, creamy, and delicious!

Crumbled Italian sausage and yellow onion provide a hint of sweetness to the casserole. Mix them with roasted spaghetti squash and wilted spinach before mixing with savory custard.

Combine heavy cream, an egg, parmesan, and Swiss cheese. Dried sage and thyme offer a delicate herb flavor. Cook your casserole until golden brown and bubbling!

11. Homemade Green Bean Casserole

Source: lovefromtheoven.com

Tender green beans meet a creamy cheese sauce and a delicious crunchy topping!

Use fresh green beans for the best taste in your casserole. Make a creamy, cheesy sauce with a roux (flour and butter), cream cheese, sour cream, and heavy cream.

Combine melted butter, cracker crumbs, and crispy fried onions. Spread the mixture over your casserole with shredded cheese and bake until golden brown and crunchy!

12. Rutabaga and Butternut Squash Casserole

Source: garlicandzest.com

Tender root veggies and aromatic fennel are buried in a rich, creamy, cheesy sauce!

Fragrant fennel and leeks are an excellent match for sweet butternut squash and rutabaga. Make a creamy sauce with mustard and garlic powder for flavor.

Layer your veggies with the cheese sauce, shredded cheese, fennel, and leeks. Bake your casserole until bubbling and golden brown!

13. Christmas Breakfast Casserole

Source: plattertalk.com

Soft bread, crumbled sausage, golden eggs, and gooey melted cheese make this mouthwatering breakfast casserole!

Spread slices of Italian bread with garlic butter for the first layer of your casserole. Add cooked, crumbled sausage for the second.

Mix eggs, milk, scallions, and shredded cheese and pour all over the sausage and bread. Sprinkle more cheese and cook until the eggs are set, and the top is golden!

14. Breakfast Casserole with Tater Tots

Source: maesmenu.com

This delicious savory breakfast casserole is meaty and cheesy with tender tater tots!

Frozen tater tots are the delicious bottom layer of this casserole. Add cooked maple chicken breakfast sausage for the second layer and some sweetness.

Shredded cheddar cheese is the third layer. Mix milk, eggs, and French onion dip packet mix to pour over your layers. Bake until the eggs are set, and your casserole is golden around the edges!

15. Overnight Cinnamon Roll Casserole

Source: saltysidedish.com

This syrupy, crunchy cinnamon roll casserole is the perfect sweet breakfast for Christmas morning!

Pillsbury refrigerated cinnamon rolls are the highlight of your casserole. Cut them into small pieces for the bottom layer.

Combine eggs and heavy cream and pour all over the cinnamon rolls. Add vanilla extract and ground cinnamon for more flavor. Drizzle maple syrup and add chopped pecans for crunch.

16. Loaded Mashed Potato Casserole

Source: onmykidsplate.com

Comforting mashed potato casserole is loaded with gooey cheese, crispy bacon, and green onions!

Sour cream and milk make your mashed potatoes extra creamy. Add black pepper for flavor. Mix the crispy bacon bits before putting the potatoes in a baking dish.

Add more bacon pieces and shredded cheese to the top of your dish and bake until golden. Sprinkle chopped green onions on top before you serve it!

17. Cauliflower Casserole

Source: primaverakitchen.com

This flavorful casserole is an elevated version of cauliflower cheese!

Tender steamed cauliflower forms the bulk of this dish. Make your creamy sauce with cream cheese, half and half, and mozzarella. Add flavor with garlic powder, onion powder, salt, and pepper.

Mix the cauliflower and cheese mixture in a baking dish. Top with shredded mozzarella and crispy bacon pieces, and bake until the cheese is bubbling! Garnish with fresh parsley before serving.

18. French Toast Pancakes Casserole

Source: awortheyread.com

Pancakes and French toast merge in this delicious breakfast casserole!

Light and fluffy pancakes are at the heart of this dish. They’re soaked in a warming cinnamon-spiced French toast batter. Before this, drizzle them with a buttery brown sugar mix for a caramelized taste.

Combine eggs and half-and-half with ground cinnamon, cardamom, and vanilla extract for flavor. Add blueberries to your baking dish after the batter.

Bake your casserole until the pancakes are warm. Top with whipped cream and orange zest for a festive feel! Add more juicy blueberries and chopped pecans for a crunch.

19. Cheesy Green Bean Casserole with Cherry Tomatoes

Source: artofnaturalliving.com

Tender green beans and vibrant cherry tomatoes bring this cheesy casserole to life!

Creamy mozzarella, fresh basil, and parmesan join the green beans and sweet tomatoes. Ix dried breadcrumbs and fresh parmesan and sprinkle over your casserole.

Bake your casserole until the top is crunchy and golden brown!

20. Sweet Potato Casserole with Black Beans, Kale and Quinoa

Source: happykitchen.rocks

This wholesome sweet potato casserole is a comforting, hearty dish for your holiday table.

Sweet potatoes and quinoa provide a touch of sweetness to your casserole. Bitter kale and creamy black beans complement the tasty roasted garlic sauce. Add fresh rosemary for a delicate herb taste.

Fry breadcrumbs with salt and pepper until they’re golden and crispy. Add them to your casserole for a crunchy topping!

21. Fresh Green Bean Casserole with Bacon

Source: onmykidsplate.com

Fresh green bean casserole is a fusion of tasty flavors. Think aromatic garlic, onions, and salty, crispy bacon!

Creamy garlic sauce coats tender green beans. Mix sautéed garlic and onions with flour, chicken broth, milk, and heavy cream.

Combine the green beans with the sauce, crunchy bacon pieces, and crispy fried onions. They add lovely crunchy textures amid the tender green beans!

22. Brioche French Toast Casserole

Source: disheswithdad.com

Soft, buttery brioche is soaked in a cozy, sweet cinnamon custard. It’s topped with a crunchy sugar crust!

The creamy custard combines milk, heavy cream, eggs, cinnamon, and vanilla. Brown sugar offers a delicious caramelized taste. Pour it over cubes of soft brioche.

Make your crumbly topping with brown sugar, cinnamon, flour, and cold butter. Bake your casserole until the custard is set and the top is crunchy!

23. Turkey Hash Brown Breakfast Casserole

Source: amandascookin.com

This delicious casserole is meaty and cheesy with breakfast hash browns!

Ground turkey provides meatiness to your casserole. Season it with Italian herbs and sweet yellow onion. Combine beaten eggs with the turkey, frozen hash browns, and shredded cheese.

Pour the mixture into a baking dish and top with more shredded cheese. Bake until the eggs are set, and the top is golden!

24. Vegan Cauliflower Cheese

Source: theveganlarder.com

If you are vegan, this warm and tasty cauliflower cheese is the best dish for you!

Air fry your cauliflower pieces so they’re slightly charred and softened. Mix your creamy sauce with flour, vegan butter, and plant-based milk with the cauliflower.

Miso and nutritional yeast meld to deliver the perfect cheesy taste. Dijon mustard lifts the cheesy flavor. Mix panko breadcrumbs and herbs to make a crunchy topping!

25. Biscuits and Gravy Breakfast Casserole

Source: thecookinchicks.com

This breakfast casserole with meat is a tasty twist on the classic biscuits and gravy!

The heart of your dish is made up of flaky buttermilk biscuits. On top of these, sprinkle cooked breakfast sausage. On top, melty cheddar cheese!

Soak the soft biscuits in peppered gravy and savory egg custard, then bake them into a tasty casserole!

26. Ham and Cheese Casserole

Source: dessertfortwo.com

Creamy ham and cheese casserole is a tasty twist on classic mac and cheese!

Leftover ham is perfect for this casserole. The rich, creamy sauce consists of milk, heavy cream sour cream, and shredded cheddar. Add flavor with scallions, onion powder, and garlic powder.

Top your casserole with shredded cheese and heavy cream, then bake until warm.

27. Green Bean Casserole

Source: thegourmetbonvivant.com

A homemade mushroom sauce and crispy onions make this delicious green bean casserole!

Aromatic garlic and shallots join earthy mushrooms in the creamy sauce. Make the sauce with a roux, milk, and chicken broth. Parmesan cheese takes it to the next level!

Mix everything in a baking dish and cook until it’s bubbling. Top with crispy fried onions and bake until they’re warm!

28. Overnight Savory French Toast Sausage Bake

Source: whitekitchenredwine.com

This easy French toast sausage bake is a tasty, savory twist on the sweet cinnamon version!

Cubes of brioche lay at the bottom of this casserole. Spicy ground sausage adds a lot of flavor! Complement it with diced bell pepper.

Make a savory custard with eggs and milk to cover the bread and sausage. Bake until it’s golden brown on top!

29. Garlicky Green Bean Casserole

Source: grandbaby-cakes.com

Delicious, garlicky green bean casserole is loaded with salty, sweet, and savory flavors amid the crunchy and creamy textures!

The sauce has a depth of flavor from white wine and chicken broth. Add earthy mushrooms, fragrant garlic, onion, and thyme, too. Heavy cream, cheddar, and gruyere offer a rich, creamy texture.

Your casserole is complete with a garlicky panko topping. Bake until the top is crispy and golden brown!

30. Holiday Leftovers Breakfast Casserole

Source: senseandedibility.com

Use your leftover Christmas rolls and cranberry sauce for this tasty breakfast casserole!

The leftover bread absorbs the delicious flavors of the spiced custard. Make this with eggs, heavy cream, milk, and granulated sugar. Add a festive taste with orange zest, vanilla, and cinnamon.

Add spoonfuls of cranberry sauce over your bread and custard mixture in a baking dish. Bake until golden brown, then drizzle over a citrusy orange glaze when it’s slightly cooled!

31. Sweet Potato Casserole with Marshmallows

Source: currytrail.in

Make this classic sweet potato casserole with golden marshmallows the highlight of your Christmas table!

Tender sweet potatoes taste delicious with warming spices. Ground cinnamon, nutmeg, and cloves are perfect. Add vanilla extract for an extra hint of sweetness. Mix in chopped pecans for crunch.

Cover your mashed sweet potato mixture with a crunchy pecan crumb. Add the spices and vanilla to this, too, for the seasonal taste throughout.