The aroma of sweet potatoes baking in the oven is a comforting reminder of home, and that’s exactly what this Easy Sweet Potato Egg Casserole delivers. With layers of savory eggs, hearty sausages, and naturally sweet orange-fleshed sweet potatoes, this dish promises a satisfying start to your day. It’s the perfect make-ahead breakfast, allowing you to prepare it the night before and savor a warm, scrumptious meal in the morning with minimal fuss. Plus, it’s easily adaptable—swap out ingredients to suit your taste or dietary needs. This nutritious casserole not only fills your belly but will also keep you energized throughout the day. Curious about how to customize this dish to make it your own? Let’s dive in!

How can you customize this casserole?
Adaptability: This Sweet Potato Egg Casserole is a canvas for your culinary creativity! Flavorful swaps can transform the dish—try using butternut squash for a different sweetness or add sautéed spinach for extra nutrients. Dietary friendly: Substitute turkey sausage with a vegetarian option or simply omit it for a meat-free delight. Cheesy goodness: Experiment with cheeses like feta or pepper jack to elevate the flavor profile. Meal prep made easy: Prepare it the night before, and save time in the morning; just bake and enjoy! You won’t regret this nourishing start to your day! For more meal prep ideas, check out my Protein Spaghetti Casserole or Winter Vegetable Casserole.
Sweet Potato Egg Casserole Ingredients
For the Base
- Sweet Potatoes – Provide natural sweetness and a nutritious foundation for your casserole. Look for Garnet or Jewel varieties for the best flavor.
- Eggs – Serve as the primary protein source and binding agent; large eggs work best for a fluffy texture.
- Turkey Sausage – Adds savory depth and protein; substitute with vegetarian sausage or omit for a meat-free dish.
For the Vegetables
- Onion – Enhances the aroma and flavor; using red onions yields a milder taste.
- Green Pepper – Contributes a sweet and slightly crunchy texture; you can swap with bell peppers for an even sweeter profile.
- Garlic – Boosts the flavor; fresh garlic is preferred, but garlic powder can be an easy alternative.
For Creaminess
- Shredded Cheese – Adds a deliciously creamy texture; a blend of cheddar and mozzarella is a crowd-pleaser.
For Cooking
- Avocado Oil – Ideal for sautéing your vegetables; olive oil makes a good substitute if needed.
For Flavoring
- Thyme – Infuses the dish with herby goodness; use fresh for the brightest flavor or dried thyme as a backup.
Feel the comforting essence of this Sweet Potato Egg Casserole as you gather these simple ingredients! With such a blend of flavors and the option for customization, you’re in for a delightful treat that kick-starts your mornings beautifully.
Step‑by‑Step Instructions for Sweet Potato Egg Casserole
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). This ensures a perfectly baked Sweet Potato Egg Casserole. While the oven heats up, gather your ingredients so everything is ready for the next steps.
Step 2: Chop the Vegetables
Carefully chop two medium sweet potatoes, one onion, one green pepper, and two cloves of garlic. Aim for uniform pieces about half an inch in size for even cooking. Set the chopped vegetables aside in a large bowl, ready to be cooked.
Step 3: Heat the Oil
In a large saucepan, heat 2 tablespoons of avocado oil over medium heat. Once the oil shimmers, it’s time to add the chopped vegetables. This will create a delicious base for your casserole as they sauté.
Step 4: Sauté the Vegetables
Add the sweet potatoes, onion, and green pepper to the heated oil. Sauté for about 8-9 minutes until the sweet potatoes are softened and slightly caramelized. Add the minced garlic in the last minute, stirring to release its fragrant aroma.
Step 5: Prepare the Casserole Dish
Grease a 9×13-inch casserole dish with avocado oil or cooking spray. Once the vegetable mixture is ready, spread it evenly across the bottom of the prepared dish. This forms a flavorful base for your Sweet Potato Egg Casserole.
Step 6: Cook the Sausage
In the same saucepan, add 1 pound of turkey sausage. Cook over medium heat until browned and crumbled, stirring occasionally, about 5-7 minutes. Once cooked, drain any excess liquid and mix the sausage into the veggie layer in your casserole dish.
Step 7: Whisk the Egg Mixture
In a large mixing bowl, whisk together 8 large eggs, 1 cup of milk, 1 teaspoon of thyme, and season with salt and pepper to taste. Add in 1 cup of shredded cheese for creaminess. This egg mixture will bind all the ingredients in the Sweet Potato Egg Casserole.
Step 8: Combine and Pour
Pour the egg mixture evenly over the vegetable and sausage layers in the casserole dish. Use a spatula to gently stir the mixture, ensuring everything is well combined without overmixing.
Step 9: Bake the Casserole
Place the casserole in the preheated oven and bake for 40-45 minutes. It should be set in the center and lightly browned on top when done. Keep an eye on it during the last few minutes for the perfect golden hue.
Step 10: Cool and Serve
Once baked, remove the casserole from the oven and allow it to cool for 10-15 minutes. This resting period helps set the layers and makes slicing easier. Cut into squares and serve warm—enjoy this wholesome Sweet Potato Egg Casserole!

Sweet Potato Egg Casserole Variations
Feeling inspired to put a personal twist on your Sweet Potato Egg Casserole? Let your creativity shine as you explore delightful adaptations and substitutions!
- Dairy-Free: Substitute the shredded cheese with a plant-based cheese alternative for a creamy, guilt-free option without sacrificing flavor. This allows everyone to dig in without worry!
- Spicy Kick: Add diced jalapeños or a pinch of red pepper flakes to the egg mixture for a fiery surprise that wakes up your taste buds. The warmth will elevate the entire dish!
- Extra Veggies: Incorporate chopped spinach, kale, or mushrooms to pack even more nutrition into your casserole. Adding greens not only enhances the dish’s health benefits but also adds a beautiful pop of color.
- Herb Infusion: Experiment with fresh herbs like basil or parsley to add a fresh and aromatic layer. A sprinkle of fresh herbs can transform this dish into something truly special, brightening each bite.
- Potato Swap: Try replacing sweet potatoes with regular potatoes or even zucchini for a different texture and flavor. Each root vegetable brings its unique personality to the dish!
- Cheese Variations: Swap cheddar for feta or pepper jack to bring unique flavor notes that complement the savory sausage. Cheese adds a depth of richness, making your casserole even more indulgent.
- Gluten-Free: Ensure all ingredients are gluten-free, including the sausage. This makes the casserole approachable for those with gluten sensitivities while still being deliciously hearty!
For more nutritious recipes, don’t miss my Savory Sweet Potato for another tasty breakfast option or the comforting Cod Potatoes Rosemary for dinner. Let your culinary journey begin!
Make Ahead Options
This Sweet Potato Egg Casserole is perfect for make-ahead meal prep! You can chop the sweet potatoes, onion, and green pepper up to 24 hours in advance and store them in an airtight container in the refrigerator. Alternatively, you can prepare the entire casserole the night before, bake it, and then refrigerate; it will stay fresh for up to 3 days. To prevent excess moisture, make sure to drain any liquid from the sausage and veggie mix before assembling. When you’re ready to enjoy a warm breakfast, simply reheat it in the oven at 350°F (175°C) for about 15-20 minutes. With these prep-ahead tips, you’ll have a delicious and nutritious start to your busy mornings!
How to Store and Freeze Sweet Potato Egg Casserole
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Fridge: Store leftovers in an airtight container for up to 4 days. Cut into portions for easy reheating, ensuring each piece remains flavorful and ready to enjoy.
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Freezer: Wrap individual portions tightly in plastic wrap, then place them in a freezer-safe bag. These can be frozen for up to 3 months, maintaining the deliciousness of your Sweet Potato Egg Casserole.
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Reheating: To reheat, you can use the microwave for quick servings or the oven at 350°F (175°C) until heated through—about 15-20 minutes. Enjoy your warm breakfast!
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Make-Ahead: Prepare the casserole the night before and refrigerate it before baking. Just let it rest at room temperature for about 30 minutes before popping it in the oven for an easy, warm morning treat!
What to Serve with Easy Sweet Potato Egg Casserole
Bring a touch of joy to your breakfast table with delightful side dishes that perfectly complement your casserole!
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Fresh Fruit Salad: Bursting with seasonal flavors, this vibrant mix adds a refreshing contrast to the savory casserole. It’s the perfect balance for a wholesome meal.
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Crispy Toast with Butter: Golden, buttery toast adds a comforting crunch, inviting everyone to slather on their favorite spreads or just enjoy its delicious simplicity.
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Simple Green Salad: Crisp greens topped with a light vinaigrette bring a fresh, crunchy element to the table. This salad balances the richness of the casserole, keeping your brunch light and lively.
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Herbed Yogurt Dip: A cooling dip made from Greek yogurt and fresh herbs provides a creamy, zesty counterpoint to the warmth of the dish. Savory and satisfying!
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Sweet Maple Syrup Drizzle: For those who adore a hint of sweetness, a drizzle of pure maple syrup over your casserole enhances the natural sweetness of the sweet potatoes.
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Steamy Herbal Tea: Brew a fragrant cup of herbal tea to accompany breakfast, offering a soothing touch against the hearty flavors of the casserole.
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Homemade Muffins: Pair with light, fluffy muffins for that quintessential brunch experience. Opt for blueberry or banana flavors for an appealing touch of sweetness.
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Coffee or Espresso: Nothing complements a satisfying breakfast like a strong cup of coffee, awakening your senses and enhancing the delightful flavors of your meal.
Feel free to mix and match these ideas to create your own breakfast spread while enjoying your Sweet Potato Egg Casserole!
Expert Tips for Sweet Potato Egg Casserole
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Uniform Dicing: Ensure sweet potatoes are cut into even pieces (about 1/2 inch) for consistent cooking and texture throughout the casserole.
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Cook in Batches: Avoid overcrowding the pan when sautéing vegetables, as this can lead to uneven cooking. Cook in batches for a perfect caramelization.
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Drain Excess Liquid: To prevent a soggy Sweet Potato Egg Casserole, drain excess liquid from the cooked sausage and vegetables before combining them in the casserole dish.
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Rest Before Slicing: Allow the casserole to rest for 10-15 minutes after baking. This helps firm up the texture for cleaner slices and easier serving.
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Personalize It: Don’t hesitate to adjust ingredients based on your preferences. Swap spices or even add extra veggies to make the Sweet Potato Egg Casserole your own!

Sweet Potato Egg Casserole Recipe FAQs
What type of sweet potatoes should I use for the casserole?
Look for Garnet or Jewel sweet potatoes, as they provide the best flavor and sweetness for your Sweet Potato Egg Casserole. Opt for firm, smooth-skinned potatoes without any dark spots or blemishes.
How should I store leftovers of the Sweet Potato Egg Casserole?
Absolutely! Store any leftovers in an airtight container in the fridge for up to 4 days. For best results, cut the casserole into portions to make reheating easier, and ensure each piece maintains its deliciousness!
Can I freeze the Sweet Potato Egg Casserole?
Yes, you can! To freeze, wrap individual portions tightly in plastic wrap and then place them in a freezer-safe bag. This allows the casserole to be enjoyed up to 3 months later. When you’re ready to eat, simply reheat in the microwave or oven at 350°F (175°C) for about 15-20 minutes.
What can I do if my casserole becomes too watery?
If you find your Sweet Potato Egg Casserole is too watery, make sure to drain any excess liquid from the cooked sausage and vegetables before adding them to the casserole dish. Additionally, avoid overcooking the vegetables, and let the casserole rest for 10-15 minutes after baking to firm up the texture.
Are there any dietary considerations I should keep in mind?
Yes! If you have dietary restrictions, consider using a vegetarian sausage or omitting the sausage entirely for a meat-free version of the casserole. Ensure to check for any cheese allergies as well; using dairy-free cheese can be an excellent alternative if needed.
Can I prepare the Sweet Potato Egg Casserole ahead of time?
Very! You can prepare the casserole the night before. Assemble all the ingredients, refrigerate it overnight, and let it rest at room temperature for about 30 minutes before baking in the morning. This way, you can enjoy a warm, hearty breakfast with minimal morning fuss!

Sweet Potato Egg Casserole: Your New Favorite Morning Boost
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C).
- Chop two medium sweet potatoes, one onion, one green pepper, and two cloves of garlic into uniform pieces.
- Heat 2 tablespoons of avocado oil in a large saucepan over medium heat.
- Sauté the sweet potatoes, onion, and green pepper for about 8-9 minutes until softened. Add minced garlic in the last minute.
- Grease a 9×13 inch casserole dish with avocado oil. Spread the vegetable mixture evenly across the bottom.
- In the same saucepan, cook 1 pound of turkey sausage over medium heat until browned, about 5-7 minutes. Mix with the veggies in the dish.
- Whisk together 8 large eggs, 1 cup of milk, 1 teaspoon of thyme, and season with salt and pepper in a large bowl. Stir in 1 cup of shredded cheese.
- Pour the egg mixture over the vegetables and sausage in the casserole dish, gently stirring to combine.
- Bake for 40-45 minutes until set and lightly browned. Check for a golden hue.
- Allow to cool for 10-15 minutes before slicing. Serve warm.

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