Baked Breakfast Potato Casserole

Highlighted under: Oven Inspiration

When I crave a hearty breakfast that’s easy to prepare, I always turn to my Baked Breakfast Potato Casserole. This recipe has become a family favorite, filled with fluffy potatoes, rich sausage, and gooey cheese. It’s perfect for lazy weekends or when I want to impress guests with minimal effort. The combination of flavors and textures truly makes this dish a feast for the senses. Plus, it’s versatile enough to adapt to any dietary preferences by simply swapping ingredients. I can’t wait for you to try it!

Tamsyn Calder

Created by

Tamsyn Calder

Last updated on 2026-02-16T10:09:37.241Z

As I tested this Baked Breakfast Potato Casserole recipe, I quickly learned that the secret lies in the seasoning. The sausage is a game-changer; using a mix of spicy and mild makes every bite pop! I also found that letting the dish rest for a few minutes before serving allows the flavors to meld beautifully.

One morning, I experimented with adding bell peppers and onions to the mix. The result was fantastic! They not only added color but also enhanced the overall taste. I encourage you to play with the ingredients based on what you have on hand—it’s a very forgiving recipe!

You Will Love This Recipe Because

  • Hearty and satisfying, perfect for breakfast or brunch
  • Easily customizable with your favorite ingredients
  • Great for meal prep or feeding a crowd

Understanding Your Ingredients

The base of this Baked Breakfast Potato Casserole is, of course, the russet potatoes. When choosing your potatoes, look for firm ones with smooth skin for the best texture. Their starchiness helps create a fluffy interior when baked, which contrasts beautifully with the richness of the sausage and cheese. For optimal cooking, try to cut the potatoes into uniform ½-inch pieces to ensure they cook evenly throughout the baking process.

Breakfast sausage brings a savory depth to the dish. For those looking to tweak the flavor, consider using spicy or flavored sausage variations such as maple or Italian sausage. If you prefer a lighter option, turkey sausage works well but may require adjusting the seasonings to maintain a fragrant, hearty flavor. Remember, the quality of your sausage directly affects the overall taste of the casserole.

The Perfect Egg Mixture

The egg and milk mixture acts as the binding agent in this casserole, ensuring that all the layers meld together perfectly. Using large eggs is crucial here; they contribute to the volume and texture of the baked dish. Whisking the eggs thoroughly ensures they are fully integrated, yielding a fluffy, well-distributed texture throughout the casserole. You can also opt for dairy alternatives like almond or oat milk for a lighter option, but the taste may vary slightly.

Adding garlic powder and onion powder enhances the dish’s overall flavor profile without adding extra prep time. These seasonings permeate the entire casserole, filling your kitchen with an irresistible aroma while it bakes. Don't hesitate to adjust the seasoning amounts based on your preference; a dash of paprika or even a sprinkle of cayenne pepper can add a delightful kick if you enjoy a bit of spice.

Serving and Storing Tips

Once baked to golden perfection, let your casserole rest for about 5-10 minutes before serving. This brief cooling period helps the layers set, making it easier to cut into portions without losing shape. Serving it warm alongside fresh fruit or a light salad can create a balanced breakfast or brunch that caters to various tastes and preferences.

For meal prep enthusiasts, this casserole is ideal for storing. It can be made in advance and refrigerated for up to 3 days. To reheat, slice portions and place them in the microwave for about 1-2 minutes or until heated thoroughly. If you want to prepare it ahead, you can assemble the casserole and store it unbaked in the fridge overnight. Just increase the baking time by about 10-15 minutes if starting from cold.

Ingredients

Main Ingredients

  • 4 medium russet potatoes, peeled and diced
  • 1 pound breakfast sausage, cooked and crumbled
  • 1 cup shredded cheddar cheese
  • 6 large eggs
  • 1 cup milk
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • Salt and pepper to taste
  • Chopped green onions for garnish

Instructions

Steps

Preheat Oven

Preheat your oven to 375°F (190°C). Grease a large casserole dish.

Prepare Potatoes

Spread the diced potatoes evenly on the bottom of the casserole dish.

Add Sausage and Cheese

Layer the cooked sausage and shredded cheese over the potatoes.

Mix Eggs and Milk

In a mixing bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper.

Combine and Bake

Pour the egg mixture over the potato, sausage, and cheese layers. Bake in the preheated oven for 45 minutes or until golden brown.

Garnish and Serve

Let it rest for a few minutes before garnishing with green onions and serving warm.

Secondary image

Pro Tips

  • Feel free to substitute the sausage with bacon or a plant-based alternative for a variation. Adding in your favorite vegetables can also enhance the flavor and nutrition.

Troubleshooting

If you find that your casserole is too watery after baking, it might be due to excess moisture from the potatoes or the milk. To combat this, ensure that the diced potatoes are well-drained and dried before layering. You can also choose to par-cook them in the microwave for a few minutes to reduce moisture content before assembling the casserole.

Another common issue is the casserole being undercooked in the center. To avoid this, always check for doneness using a toothpick in the middle. It should come out clean or with a few moist crumbs attached. If you find the edges are browning too quickly while the center remains uncooked, simply cover the dish with aluminum foil and continue baking until the center is set.

Flavor Variations

This recipe is wonderfully versatile—you can easily swap in your favorite vegetables for added nutrition and flavor. Consider adding sautéed bell peppers, spinach, or mushrooms either mixed into the egg mixture or layered beneath the sausage and cheese. These ingredients not only enhance the dish but also add vibrant color and texture.

For a Mediterranean twist, replace cheddar cheese with feta and add sun-dried tomatoes and black olives. The possibilities are endless! You can also turn this into a southwestern breakfast by using pepper jack cheese and mixing in corn and diced jalapeños for a zesty kick. Don't hesitate to experiment and find your favorite combination!

Questions About Recipes

→ Can I make this casserole ahead of time?

Yes, you can prepare it the night before and refrigerate it. Just add a few extra minutes to the cooking time.

→ Is it possible to freeze leftovers?

Absolutely! Let it cool completely, then wrap tightly and freeze for up to 2 months. Reheat in the oven before serving.

→ What can I use instead of milk?

You can substitute with almond milk, oat milk, or any other non-dairy alternatives.

→ How can I spice it up?

Try adding diced jalapeños or incorporating hot sauce into the egg mixture for a kick!

Baked Breakfast Potato Casserole

When I crave a hearty breakfast that’s easy to prepare, I always turn to my Baked Breakfast Potato Casserole. This recipe has become a family favorite, filled with fluffy potatoes, rich sausage, and gooey cheese. It’s perfect for lazy weekends or when I want to impress guests with minimal effort. The combination of flavors and textures truly makes this dish a feast for the senses. Plus, it’s versatile enough to adapt to any dietary preferences by simply swapping ingredients. I can’t wait for you to try it!

Prep Time15 minutes
Cooking Duration45 minutes
Overall Time60 minutes

Created by: Tamsyn Calder

Recipe Type: Oven Inspiration

Skill Level: Easy

Final Quantity: 6 servings

What You'll Need

Main Ingredients

  1. 4 medium russet potatoes, peeled and diced
  2. 1 pound breakfast sausage, cooked and crumbled
  3. 1 cup shredded cheddar cheese
  4. 6 large eggs
  5. 1 cup milk
  6. 1 teaspoon garlic powder
  7. 1 teaspoon onion powder
  8. Salt and pepper to taste
  9. Chopped green onions for garnish

How-To Steps

Step 01

Preheat your oven to 375°F (190°C). Grease a large casserole dish.

Step 02

Spread the diced potatoes evenly on the bottom of the casserole dish.

Step 03

Layer the cooked sausage and shredded cheese over the potatoes.

Step 04

In a mixing bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper.

Step 05

Pour the egg mixture over the potato, sausage, and cheese layers. Bake in the preheated oven for 45 minutes or until golden brown.

Step 06

Let it rest for a few minutes before garnishing with green onions and serving warm.

Extra Tips

  1. Feel free to substitute the sausage with bacon or a plant-based alternative for a variation. Adding in your favorite vegetables can also enhance the flavor and nutrition.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 15g
  • Cholesterol: 195mg
  • Sodium: 85mg
  • Total Carbohydrates: 32g
  • Dietary Fiber: 3g
  • Sugars: 4g
  • Protein: 6g