Easy Sweet Potato Egg Casserole is the ultimate healthy breakfast bake that combines savory turkey sausage, tender roasted sweet potatoes, fluffy eggs, and melted mozzarella cheese into one satisfying dish. Whether you’re planning a weekend brunch, prepping weekday breakfasts, or feeding a hungry family, this hearty egg casserole delivers both nutrition and comfort in every bite.

Loaded with protein, fiber, and wholesome ingredients, this sweet potato breakfast casserole is simple to make and perfect for meal prep. Even beginner cooks can master this recipe with ease.
Let’s explore how to make this flavorful, high-protein breakfast casserole step by step.
Why You’ll Love This Sweet Potato Egg Casserole
This isn’t just another egg bake—it’s a balanced, filling, and flavorful breakfast solution.
✔ High in Protein
Turkey sausage and eggs provide lasting energy.
✔ Naturally Gluten-Free
No bread needed—sweet potatoes add hearty texture.
✔ Perfect for Meal Prep
Make once, enjoy all week.
✔ Family-Friendly
Savory flavors everyone loves.
✔ Easy One-Dish Recipe
Minimal cleanup required.
Ingredients for Easy Sweet Potato Egg Casserole
Here’s everything you’ll need:
Main Ingredients
- 3 garlic cloves (minced)
- 1 lb uncooked turkey sausage
- 5 cups cubed sweet potatoes (1-inch cubes)
- 1 green bell pepper (diced)
- 1/2 large yellow onion (finely diced)
- 2 tablespoons avocado oil (or olive oil)
For the Egg Mixture
- 1/2 cup milk (whole milk for richness)
- 10 large eggs
- 1/2 cup grated mozzarella cheese (Sargento brand recommended)
- 1 teaspoon salt
- 1 teaspoon dried thyme
- 1/2 teaspoon black pepper
Why Sweet Potatoes Are Perfect for Breakfast Casseroles

Sweet potatoes aren’t just delicious—they’re nutritious and versatile.
Nutritional Benefits:
- High in fiber
- Rich in vitamin A
- Natural source of complex carbohydrates
- Provide steady energy
Unlike regular potatoes, sweet potatoes add subtle natural sweetness that pairs beautifully with savory sausage and eggs.
Step-by-Step Guide: How to Make Easy Sweet Potato Egg Casserole
Follow these easy steps for perfect results.
Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C).
Lightly grease a 9×13-inch baking dish.
Step 2: Roast the Sweet Potatoes
- Spread cubed sweet potatoes on a baking sheet.
- Drizzle with 1 tablespoon avocado oil.
- Toss lightly with salt and pepper.
- Roast for 20–25 minutes, until fork-tender.
Roasting enhances flavor and prevents sogginess.
Step 3: Cook the Turkey Sausage and Vegetables
In a large skillet over medium heat:
- Add remaining tablespoon of oil.
- Brown turkey sausage, breaking it into crumbles.
- Add diced onion and green bell pepper.
- Cook for 4–5 minutes until softened.
- Stir in minced garlic and cook for 30 seconds.
Remove from heat once fully cooked.
Step 4: Prepare the Egg Mixture
In a large bowl, whisk together:
- 10 eggs
- 1/2 cup milk
- Salt
- Pepper
- Dried thyme
Whisk until fully blended.
Step 5: Assemble the Casserole
- Spread roasted sweet potatoes evenly in baking dish.
- Add sausage and vegetable mixture on top.
- Sprinkle grated mozzarella cheese.
- Pour egg mixture evenly over everything.
Gently tap dish to distribute eggs evenly.
Step 6: Bake
Bake at 375°F (190°C) for 30–35 minutes, or until:
- Center is set
- Edges are lightly golden
- Knife inserted in center comes out clean
Let cool for 5–10 minutes before slicing.
Tips for the Best Sweet Potato Breakfast Casserole

1. Roast Sweet Potatoes First
This prevents excess moisture and enhances flavor.
2. Use Freshly Grated Cheese
Melts better than pre-shredded varieties.
3. Don’t Overbake
Overcooking can make eggs rubbery.
4. Let It Rest
Resting helps the casserole set properly.
5. Customize Seasonings
Add paprika, cayenne, or Italian seasoning for variation.
Flavor Variations and Customizations
Swap the Protein
- Chicken sausage
- Breakfast pork sausage
- Plant-based sausage
Add More Vegetables
- Spinach
- Mushrooms
- Broccoli
- Cherry tomatoes
Change the Cheese
- Cheddar
- Pepper Jack
- Feta
Why This Recipe Is Great for Meal Prep
This sweet potato egg casserole stores beautifully.
Refrigeration
Store in airtight container for up to 5 days.
Freezing
Freeze individual portions for up to 2 months.
Reheating
- Microwave: 60–90 seconds
- Oven: 325°F for 10 minutes
It reheats without losing texture.
Nutritional Benefits
This casserole provides balanced macronutrients:
High in:
- Protein
- Fiber
- Vitamins A & C
- Iron
Moderate in:
- Healthy fats
It’s perfect for:
- Busy mornings
- Post-workout meals
- Brunch gatherings
- Weekly meal planning
Common Mistakes to Avoid
❌ Skipping the sweet potato roasting step
❌ Overbaking
❌ Using too much milk
❌ Not draining excess grease from sausage
❌ Cutting before resting
Serving Suggestions
Serve your easy sweet potato egg casserole with:
- Fresh fruit salad
- Avocado slices
- Whole-grain toast
- Greek yogurt
- Hot sauce for spice
It also pairs beautifully with coffee or fresh juice for brunch.
Frequently Asked Questions (FAQ)
1. Can I make sweet potato egg casserole ahead of time?
Yes! Assemble the casserole the night before, refrigerate, and bake in the morning.
2. How do I keep egg casserole from becoming watery?
Roast sweet potatoes first and avoid adding excess milk.
3. Can I use regular potatoes instead of sweet potatoes?
Yes, but sweet potatoes provide added nutrients and slight sweetness.
4. Is sweet potato egg casserole healthy?
Yes. It’s high in protein, fiber, and vitamins while being naturally gluten-free.
5. Can I make this dairy-free?
Yes. Use unsweetened almond milk and dairy-free cheese alternatives.
6. How do I know when the casserole is done baking?
The center should be fully set and not jiggle when gently shaken.
Why This Breakfast Casserole Is Perfect for Busy Families
- Simple ingredients
- Balanced nutrition
- Great leftovers
- Easy cleanup
- Kid-approved flavors
Instead of sugary cereals or rushed breakfasts, this casserole gives your morning a nutritious boost.
Final Thoughts: A Hearty, Wholesome Start to Your Day
Easy Sweet Potato Egg Casserole is a satisfying, nutrient-packed breakfast bake that combines savory turkey sausage, roasted sweet potatoes, fluffy eggs, and melted mozzarella into one delicious dish.
It’s simple enough for beginners, hearty enough for families, and flexible enough for meal prep. Whether you’re hosting brunch or preparing for a busy week, this casserole will quickly become a staple in your kitchen.
Ready to make your mornings easier and healthier?
Preheat your oven, gather your ingredients, and bake this flavorful sweet potato egg casserole today.
If you enjoyed this recipe, bookmark it, share it with friends, and explore more wholesome breakfast ideas to keep your mornings stress-free and delicious.
Happy cooking!






