Easy Sweet Potato Egg Casserole

The aroma of savory herbs mingling with sweet potatoes and sizzling turkey sausage will fill your kitchen when you prepare this Easy Sweet Potato Egg Casserole. This hearty breakfast dish combines protein-rich eggs, nutrient-packed sweet potatoes, and flavorful turkey sausage into a meal that’s both satisfying and nourishing. Perfect for weekend brunches or meal prep, this Easy Sweet Potato Egg Casserole is a versatile dish that pleases crowds while keeping preparation simple. You’ll learn how to layer flavors perfectly, ensure the casserole bakes evenly, and customize this recipe to suit different dietary needs and preferences.

Why You’ll Love This Recipe

This Easy Sweet Potato Egg Casserole hits all the right notes for a memorable breakfast or brunch dish. The contrast between the creamy egg mixture and the slightly crisp sweet potato cubes creates a delightful textural experience with every bite. Unlike traditional breakfast casseroles that rely heavily on bread, this recipe uses nutrient-dense sweet potatoes as the base, making it both gluten-free and more nutritious.

What makes this sweet potato breakfast casserole truly special is its perfect balance of flavors – the natural sweetness from the potatoes complements the savory notes from the turkey sausage and aromatic herbs. It’s hearty enough to keep you satisfied for hours yet doesn’t leave you feeling weighed down.

For busy households, this casserole is a lifesaver. You can prepare components ahead of time, and the leftovers reheat beautifully for quick weekday breakfasts. Whether you’re hosting a holiday breakfast, meal prepping for the week, or simply wanting to elevate your morning routine, this sweet potato and egg bake delivers consistent, delicious results with minimal fuss.

Ingredients List for the Easy Sweet Potato Egg Casserole

The magic of this casserole comes from simple, wholesome ingredients that work harmoniously together. The sweet potatoes provide a nutritious base while the protein from eggs and turkey sausage makes this a complete meal.

• 2 tablespoons avocado oil
• 1/2 large yellow onion, chopped
• 1 green bell pepper, chopped
• 5 cups cubed sweet potatoes
• 3 garlic cloves
• 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

Pro Tips

Creating the perfect Easy Sweet Potato Egg Casserole relies on a few critical techniques that elevate it from good to extraordinary:

First, don’t rush the vegetable sautéing stage. Those 8-9 minutes allow the sweet potatoes to partially cook and release their natural sugars, creating caramelization that deepens the overall flavor profile of your casserole. If you skip this step, you’ll end up with undercooked sweet potatoes and miss out on their full flavor potential.

When adding garlic, always do so in the final minutes of sautéing. Garlic burns quickly and develops a bitter taste when overcooked. Adding it toward the end ensures you get its aromatic qualities without risking a burnt flavor throughout your dish.

For the perfect egg texture, make sure to whisk your eggs thoroughly with the milk until the mixture looks uniform. This creates a smoother, more consistent custard throughout the casserole. If you’re unsure if your casserole is done, insert a knife in the center – it should come out clean, and the center should be firm but still moist. Overbaking will result in a dry casserole, so keep a close eye during the final 10 minutes of baking.

Instructions

Step 1: Preheat your oven to 350°F (175°C). While the oven is heating, chop all your vegetables. Grease a 9×13-inch casserole dish to prevent sticking.

Step 2: In a Dutch oven or large saucepan, heat 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. In the last minute or two, add minced garlic and continue to sauté. Remove vegetables from the pan and spread evenly in the prepared casserole dish.

Step 3: In the same Dutch oven, add the turkey sausage and sauté until completely cooked through, breaking it into small pieces as it cooks. Once done, add the sausage to the vegetables in the casserole dish and stir to combine.

Step 4: In a separate mixing bowl, whisk together the eggs, milk, fresh thyme, salt, pepper, and shredded cheese until smooth and well combined.

Step 5: Pour the egg mixture over the vegetable and sausage mixture in the casserole dish. Stir gently to evenly disperse the egg mixture. Bake in the preheated oven for 40-45 minutes, or until the center is firm. If the top browns too much, cover loosely with foil halfway through.

Step 6: Remove the dish from the oven and let it cool for about 15 minutes before serving.

Variations

The versatility of this Easy Sweet Potato Egg Casserole makes it perfect for customization. Here are some popular variations:

For a vegetarian sweet potato breakfast casserole, simply omit the turkey sausage and add 1-2 cups of sautéed mushrooms and an extra cup of vegetables like zucchini or spinach. The mushrooms provide that meaty texture and umami flavor that makes the casserole satisfying without meat.

If you’re following a dairy-free diet, this casserole adapts beautifully. Substitute the regular milk with almond, oat, or coconut milk, and either omit the cheese or use your favorite plant-based cheese alternative. The eggs provide plenty of binding power, so the casserole will still hold together well.

For a spicier southwestern version, add 1 diced jalapeño, substitute the thyme with 1 tablespoon of taco seasoning, and use pepper jack cheese instead of mozzarella. Top with sliced avocado and cilantro before serving for a Mexican-inspired breakfast that’s sure to wake up your taste buds.

Storage and Serving

This Easy Sweet Potato Egg Casserole keeps beautifully in the refrigerator for up to 4 days, making it ideal for meal prep. Once completely cooled, cut into portions and store in airtight containers. For longer storage, you can freeze individual portions for up to 3 months. When ready to enjoy, thaw overnight in the refrigerator and reheat in a 350°F oven for about 15 minutes or microwave individual portions for 1-2 minutes until heated through.

For serving, pair this hearty casserole with a fresh green salad dressed with a light vinaigrette to balance the richness of the dish. The casserole also works wonderfully alongside a fruit salad featuring seasonal berries or citrus segments.

For a complete brunch spread, serve the Easy Sweet Potato Egg Casserole as your main protein alongside whole grain toast, roasted tomatoes, and perhaps a light yogurt parfait. The casserole is substantial enough to stand alone but versatile enough to complement other breakfast favorites.

FAQs

Can I prepare this casserole the night before?
Yes! You can assemble the entire casserole, cover it tightly with plastic wrap, and refrigerate overnight. In the morning, remove it from the refrigerator while your oven preheats, then bake as directed, adding 5-10 minutes to the cooking time since you’re starting with cold ingredients.

Is this casserole gluten-free?
Yes, this Easy Sweet Potato Egg Casserole is naturally gluten-free, making it perfect for those with gluten sensitivities or celiac disease.

Can I use regular potatoes instead of sweet potatoes?
Absolutely, though you’ll lose the natural sweetness and nutritional benefits that sweet potatoes provide. If using regular potatoes, consider using Yukon Gold for a buttery flavor and good texture.

How can I tell when the casserole is done baking?
The casserole is done when the center feels firm (not jiggly) and a knife inserted in the middle comes out clean. The top should be lightly golden but not overly browned.

Can I add more vegetables to this recipe?
Definitely! Spinach, kale, mushrooms, and zucchini all work well in this casserole. If adding leafy greens, sauté them first to remove excess moisture, and if adding more vegetables, you may need to increase the eggs by 1-2 to ensure everything binds together properly.

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