Start your day with a hearty and nutritious breakfast casserole featuring sweet potatoes. This dish combines the natural sweetness of sweet potatoes with the savory flavors of cheddar cheese and eggs, creating a delightful meal that will keep you energized throughout the morning.
While most of the ingredients in this recipe are common, you might need to ensure you have sweet potatoes and cheddar cheese on hand. Sweet potatoes are often found in the produce section, while cheddar cheese can be located in the dairy aisle. Make sure to pick up fresh eggs and milk as well.

Ingredients For Sweet Potato Breakfast Casserole
Sweet potatoes: These root vegetables add a natural sweetness and are packed with nutrients.
Milk: Helps to create a creamy texture when mixed with the eggs.
Eggs: Provide structure and protein to the casserole.
Cheddar cheese: Adds a savory, melted topping to the dish.
Salt: Enhances the overall flavor of the casserole.
Black pepper: Adds a hint of spice and depth to the flavor.
Olive oil: Used to coat the sweet potatoes, helping them to roast evenly.
Technique Tip for This Casserole
When preparing the sweet potatoes, make sure to dice them into uniform pieces. This ensures even cooking and prevents some pieces from being undercooked while others are overdone. Additionally, tossing the sweet potatoes in olive oil before baking helps them to caramelize slightly, enhancing their natural sweetness and adding a depth of flavor to the casserole.
Suggested Side Dishes
Alternative Ingredients
sweet potatoes - Substitute with butternut squash: Butternut squash has a similar texture and sweetness, making it a great alternative.
sweet potatoes - Substitute with yams: Yams are often confused with sweet potatoes and have a similar taste and texture.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that works well in casseroles.
milk - Substitute with coconut milk: Coconut milk adds a slight sweetness and creaminess, suitable for breakfast casseroles.
eggs - Substitute with flax eggs: Mix 1 tablespoon ground flaxseed with 3 tablespoon water per egg; this is a vegan alternative that helps bind the ingredients.
eggs - Substitute with chia eggs: Mix 1 tablespoon chia seeds with 3 tablespoon water per egg; another vegan option that provides a similar binding effect.
cheddar cheese - Substitute with mozzarella cheese: Mozzarella has a mild flavor and melts well, making it a good substitute.
cheddar cheese - Substitute with vegan cheese: For a dairy-free option, use vegan cheese that melts well.
salt - Substitute with soy sauce: Soy sauce adds a salty flavor and a bit of umami, enhancing the overall taste.
salt - Substitute with sea salt: Sea salt can be used in the same quantity and provides a slightly different mineral taste.
black pepper - Substitute with white pepper: White pepper has a similar heat but a slightly different flavor profile.
black pepper - Substitute with cayenne pepper: Cayenne pepper adds more heat and a different flavor, so use sparingly.
olive oil - Substitute with coconut oil: Coconut oil adds a slight sweetness and works well for cooking.
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a neutral flavor, making it a good alternative.
Other Alternative Recipes Similar to This Casserole
How To Store / Freeze This Breakfast Casserole
- Allow the sweet potato breakfast casserole to cool completely at room temperature before storing. This helps prevent condensation, which can make the dish soggy.
- For short-term storage, transfer the casserole to an airtight container or cover the baking dish tightly with plastic wrap or aluminum foil. Store in the refrigerator for up to 3-4 days.
- If you plan to freeze the casserole, cut it into individual portions for easier reheating. Wrap each portion tightly in plastic wrap, then place them in a freezer-safe bag or container. Label with the date for reference.
- To reheat refrigerated portions, preheat your oven to 350°F (175°C). Place the desired amount of casserole in an oven-safe dish and cover with foil. Heat for about 15-20 minutes or until warmed through.
- For reheating frozen portions, you have two options:
- Thaw the portions in the refrigerator overnight. Once thawed, follow the same reheating instructions as for refrigerated portions.
- Reheat directly from frozen by placing the portions in an oven-safe dish, covering with foil, and baking at 350°F (175°C) for 25-30 minutes, or until heated through.
- If you prefer using a microwave, place the portion on a microwave-safe plate. Cover with a microwave-safe lid or another plate to retain moisture. Heat on medium power in 1-minute intervals, checking and stirring in between, until the casserole is thoroughly warmed.
- To maintain the best texture and flavor, avoid reheating the sweet potato breakfast casserole multiple times. Reheat only the amount you plan to consume immediately.
How To Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover sweet potato breakfast casserole in an oven-safe dish.
- Cover the dish with aluminum foil to prevent the cheddar cheese from drying out.
- Heat for about 20-25 minutes, or until the casserole is warmed through and the eggs are hot.
Microwave Method:
- Place a portion of the casserole on a microwave-safe plate.
- Cover the plate with a microwave-safe lid or another plate to retain moisture.
- Heat on medium power for 2-3 minutes, checking halfway through to ensure even heating.
- If needed, continue heating in 30-second intervals until the casserole is hot.
Stovetop Method:
- Heat a non-stick skillet over medium heat.
- Add a small amount of olive oil or butter to the skillet.
- Place the leftover casserole in the skillet, breaking it up slightly to ensure even heating.
- Stir occasionally and heat for about 5-7 minutes, or until the casserole is hot throughout.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the leftover casserole in the air fryer basket.
- Heat for about 5-7 minutes, checking halfway through to ensure it doesn't overcook.
- Remove once the casserole is hot and the cheese is bubbly.
Best Tools for Making This Casserole
Oven: Used to preheat and bake the casserole at 375°F (190°C).
Peeler: Essential for peeling the sweet potatoes.
Knife: Necessary for dicing the sweet potatoes into small pieces.
Cutting board: Provides a safe surface for dicing the sweet potatoes.
Mixing bowl: Used to combine the sweet potatoes with olive oil, salt, and pepper, and later to whisk together the eggs and milk.
Whisk: Handy for beating the eggs and mixing them with the milk.
Baking dish: The vessel in which the sweet potatoes are baked and the entire casserole is assembled.
Measuring cups: Used to measure out the milk and shredded cheddar cheese.
Measuring spoons: Necessary for measuring the salt, pepper, and olive oil.
Spatula: Useful for spreading the sweet potatoes evenly in the baking dish and for serving the casserole once it's done.
Oven mitts: Important for safely handling the hot baking dish when removing it from the oven.
How to Save Time on Making This Casserole
Prep ingredients ahead: Peel and dice the sweet potatoes the night before and store them in the fridge.
Use pre-shredded cheese: Save time by buying shredded cheddar cheese instead of shredding it yourself.
Batch cooking: Double the recipe and freeze half for a quick breakfast later.
One-bowl method: Mix the eggs, milk, salt, and pepper directly in the baking dish to save on cleanup.
Microwave sweet potatoes: Partially cook the sweet potatoes in the microwave for 5 minutes before baking to reduce oven time.

Sweet Potato Breakfast Casserole Recipe
Ingredients
Main Ingredients
- 2 large sweet potatoes peeled and diced
- 1 cup milk
- 6 eggs beaten
- 1 cup cheddar cheese shredded
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 tablespoon olive oil
Instructions
- Preheat your oven to 375°F (190°C).
- In a large mixing bowl, combine the diced sweet potatoes, olive oil, salt, and pepper. Toss to coat.
- Spread the sweet potatoes evenly in a baking dish. Bake for 20 minutes or until tender.
- In the same mixing bowl, whisk together the eggs and milk. Pour over the baked sweet potatoes.
- Sprinkle the shredded cheddar cheese on top.
- Bake for an additional 25 minutes or until the eggs are set and the cheese is melted and bubbly.
- Let cool for a few minutes before serving. Enjoy!
Nutritional Value
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