Easy Sweet Potato Egg Casserole Recipe
Introduction
This Easy Sweet Potato Egg Casserole is a hearty and flavorful breakfast option that combines savory turkey sausage with tender sweet potatoes and a cheesy egg mixture. Perfect for a weekend brunch or feeding a crowd, it’s simple to prepare and packed with comforting ingredients.

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 tbsp avocado oil (or olive oil)
- 1/2 cup milk (whole milk recommended)
- 10 large eggs
- 1/2 cup grated mozzarella cheese
- 1 tsp salt
- 1 tsp dried thyme
- 1/2 tsp pepper
Instructions
- Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch casserole dish to prevent sticking. While the oven heats, chop all vegetables.
- Step 2: Heat avocado oil in a large pan over medium heat. Add diced onion, green pepper, and sweet potatoes. Cook for 8-9 minutes, stirring occasionally, until vegetables soften. Add minced garlic for the last 1-2 minutes. Remove vegetables and spread evenly in the prepared casserole dish.
- Step 3: Using the same pan, cook the turkey sausage until fully browned, breaking it into small pieces as it cooks. Add the cooked sausage to the vegetables in the casserole dish and stir to combine.
- Step 4: In a mixing bowl, whisk together eggs, milk, grated mozzarella, salt, dried thyme, and pepper until smooth and well combined.
- Step 5: Pour the egg mixture evenly over the vegetable and sausage base in the casserole dish. Stir gently to distribute. Bake in the preheated oven for 40-45 minutes, until the center is firm. If the top browns too quickly, loosely cover with foil.
- Step 6: Remove from oven and let cool for 15 minutes before serving. This resting time allows the casserole to set and makes it easier to slice.
Tips & Variations
- Substitute turkey sausage with spicy sausage or vegetarian sausage for different flavor profiles.
- Add chopped spinach or kale for extra greens and nutrition.
- Use cheddar or pepper jack cheese instead of mozzarella for a sharper taste.
- If you prefer crispier sweet potatoes, roast them first before adding to the casserole.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or oven until warmed through. This casserole can also be frozen for up to 1 month; thaw in the fridge overnight before reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this casserole dairy-free?
Yes, substitute the milk with a plant-based milk and use a dairy-free cheese alternative to keep the casserole dairy-free.
Can I prepare this recipe ahead of time?
Absolutely. You can assemble the casserole the night before, keep it covered in the refrigerator, and bake it fresh in the morning.
PrintEasy Sweet Potato Egg Casserole Recipe
This Easy Sweet Potato Egg Casserole is a hearty and satisfying breakfast dish featuring a flavorful combination of sautéed vegetables, turkey sausage, and a rich egg mixture baked to perfection. With tender sweet potatoes, aromatic garlic, green bell pepper, and melted mozzarella cheese, this casserole is a wholesome, protein-packed meal that is perfect for family breakfasts or brunch gatherings.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 15 minutes
- Yield: 8 servings 1x
- Category: Breakfast Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Salt
Ingredients
For the base:
- 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 tbsp 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 tsp salt
- 1 tsp dried thyme
- 1/2 tsp pepper
Instructions
- Preheat Oven and Prepare the Baking Dish: Preheat your oven to 350°F (175°C). While the oven heats, chop all vegetables and grease a 9×13-inch casserole dish to prevent sticking during baking.
- Cook the Vegetables: Heat avocado oil in a Dutch oven or large saucepan. Add diced onion, green bell pepper, and sweet potatoes, cooking for 8-9 minutes until they begin to soften. Add minced garlic in the last 1-2 minutes and sauté briefly. Remove vegetables and spread evenly in the casserole dish.
- Cook the Sausage: In the same pan, cook the turkey sausage thoroughly, breaking it into small pieces as it cooks. Once fully cooked, mix the sausage into the vegetables in the casserole dish.
- Prepare the Egg Mixture: In a separate bowl, whisk together eggs, milk, grated mozzarella cheese, salt, dried thyme, and pepper until smooth and well combined.
- Combine and Bake: Pour the egg mixture evenly over the sausage and vegetable mix in the casserole dish. Stir gently to distribute the eggs evenly. Bake in the preheated oven for 40-45 minutes until the center is firm. Cover loosely with foil halfway if the top browns too quickly.
- Cool and Serve: Remove the casserole from the oven and let it cool for about 15 minutes before slicing and serving. This resting time allows the flavors to meld and makes serving easier.
Notes
- You can substitute avocado oil with olive oil if preferred.
- Using whole milk adds richness, but you can use low-fat milk for a lighter version.
- Cover with foil if the casserole browns too much to avoid burning.
- This casserole can be made ahead and refrigerated; reheat before serving.
- Make sure to cook sausage thoroughly to ensure food safety.
- Leftovers can be stored in the refrigerator for up to 3 days.
Keywords: sweet potato casserole, breakfast casserole, turkey sausage recipe, mozzarella cheese casserole, baked egg casserole, healthy breakfast, low salt breakfast

