Sweet Potato and Turkey Sausage Egg Casserole Recipe
Introduction
This easy sweet potato egg casserole is a hearty and flavorful dish perfect for breakfast or brunch. Packed with savory turkey sausage, tender vegetables, and cheesy eggs, it’s both nutritious and satisfying. The combination of sweet potatoes and spices creates a comforting meal the whole family will enjoy.

Ingredients
- 2 tablespoons avocado oil
- 1/2 large yellow onion, chopped
- 1 green bell pepper, chopped
- 5 cups cubed sweet potatoes
- 3 garlic cloves, minced
- 1 pound turkey sausage
- 10 eggs
- 1/2 cup milk (plant-based milk can be substituted)
- 1 teaspoon dried thyme
- 1 teaspoon salt
- 1/2 teaspoon pepper
- 1/2 cup grated mozzarella cheese
Instructions
- Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch casserole dish and chop all the vegetables.
- Step 2: Heat avocado oil in a large pan over medium heat. Add onion, green bell pepper, and sweet potatoes. Cook for 8-9 minutes until softened, then add garlic and sauté for another 1-2 minutes. Remove vegetables and spread them evenly in the prepared casserole dish.
- Step 3: In the same pan, cook the turkey sausage until fully browned and crumbly. Add the cooked sausage to the vegetables in the casserole dish and mix well.
- Step 4: In a bowl, whisk together the eggs, milk, dried thyme, salt, pepper, and mozzarella cheese until smooth.
- Step 5: Pour the egg mixture over the sausage and vegetables in the casserole dish and stir gently to combine. Bake for 40-45 minutes, until the center is firm. Cover loosely with foil if the top browns too quickly.
- Step 6: Remove from oven and let cool for 15 minutes before serving to allow the casserole to set.
Tips & Variations
- Swap turkey sausage for chicken sausage or a plant-based alternative for different flavors or dietary needs.
- Add spinach or kale to increase the vegetable content and add extra nutrients.
- Use pepper jack cheese instead of mozzarella for a spicy kick.
- To save time, use pre-cubed sweet potatoes or frozen mixed vegetables.
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 overnight before reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this casserole ahead of time?
Yes, you can prepare the casserole up to the baking step, cover it, and refrigerate overnight. Bake it the next day, adding a few extra minutes if needed.
Is it possible to make this casserole vegetarian?
Absolutely. Simply omit the turkey sausage and consider adding extra vegetables, beans, or a plant-based sausage alternative to maintain protein and flavor.
PrintSweet Potato and Turkey Sausage Egg Casserole Recipe
This Easy Sweet Potato Egg Casserole is a hearty and delicious breakfast or brunch option featuring sautéed sweet potatoes, onion, bell pepper, and turkey sausage, all baked with a savory egg and mozzarella cheese mixture. It’s a wholesome, protein-packed dish with vibrant flavors and a satisfying texture perfect for family meals or meal prep.
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 10 minutes
- Yield: 6–8 servings 1x
- Category: Breakfast Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Fat
Ingredients
Vegetables
- 2 tablespoons avocado oil
- 1/2 large yellow onion, chopped
- 1 green bell pepper, chopped
- 5 cups cubed sweet potatoes
- 3 garlic cloves, minced
Meat
- 1 pound turkey sausage
Egg Mixture
- 10 eggs
- 1/2 cup milk (plant-based milk can be substituted)
- 1 teaspoon dried thyme
- 1 teaspoon salt
- 1/2 teaspoon pepper
- 1/2 cup grated mozzarella cheese
Instructions
- Preheat Oven and Prepare the Baking Dish: Preheat your oven to 350°F (175°C). While the oven is heating, chop the vegetables. Grease a 9×13-inch casserole dish to prevent sticking during baking.
- Cook the Vegetables: In a Dutch oven or large saucepan, heat the avocado oil until hot. Add chopped onion, green pepper, and sweet potato. Cook for 8-9 minutes, stirring occasionally, until the vegetables begin to soften. Add minced garlic during the last 1-2 minutes and sauté. Remove the cooked vegetables and spread evenly in the casserole dish.
- Cook the Sausage: In the same pan, add the turkey sausage. Sauté until fully cooked, breaking it into small pieces as it cooks. Once done, combine the sausage with the vegetables in the casserole dish, mixing well.
- Prepare the Egg Mixture: In a bowl, whisk together eggs, milk, dried thyme, salt, pepper, and grated mozzarella cheese until smooth and well combined.
- Combine and Bake: Pour the egg mixture over the vegetable and sausage mixture in the casserole dish. Stir gently to distribute the eggs evenly. Bake in the preheated oven for 40-45 minutes, or until the center is firm to the touch. If the top browns too quickly, cover loosely with foil.
- Cool and Serve: Remove from oven and let the casserole cool for about 15 minutes before serving to allow flavors to settle and make slicing easier. Enjoy your hearty breakfast casserole!
Notes
- Plant-based milk can be used as a substitute for dairy milk to make the dish dairy-free.
- Use turkey sausage for a leaner option; pork sausage can be substituted if preferred.
- Covering with foil during baking helps prevent excessive browning on top.
- This casserole can be prepared the night before and baked fresh in the morning.
- Leftovers can be refrigerated for up to 3 days and reheated.
Keywords: sweet potato casserole, breakfast casserole, turkey sausage recipe, baked egg casserole, healthy breakfast

