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Cheesy Breakfast Potato, Sausage and Egg Casserole

Kickstart your day with a Cheesy Breakfast Casserole featuring savory sausage, eggs, and potatoes—a perfect blend of flavors. This easy and make-ahead breakfast idea is a time-saver, fitting into the realm of oamc recipes. Ideal for busy mornings, the overnight preparation makes it a convenient choice for breakfast freezer meals. Elevate your breakfast game with this hearty and satisfying casserole, epitomizing the charm of quick and delicious casserole recipes.

Potato Sausage Egg Casserole

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You Will Need

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Breakfast Recipes

Instant Pot Pot-in-pot (PIP) Method 

How to make this
Cheesy Potato, egg sausage Breakfast Casserole Pot-in-pot (PIP)

  • Grease a smaller, oven-safe, and Instant Pot-safe container that can fit inside your Instant Pot. Ensure it's smaller in size to fit comfortably in the Instant Pot insert.

  • In the greased smaller pot, layer the ingredients as you would for the casserole. Start with a layer of potatoes, followed by bell peppers, onions, ham or sausage, and cheese. Repeat these layers, ending with a layer of cheese on top.

  • In a separate bowl, whisk together the eggs, milk, garlic powder, salt, and pepper.

  • Pour the egg mixture over the layers in the smaller pot.

  • Add about 1 cup of water to the Instant Pot's main insert.

  • Place a trivet or a steam rack into the Instant Pot and set the smaller pot with your casserole on top of it.

  • Close the Instant Pot lid, set the valve to "Sealing," and select the "Pressure Cook" or "Manual" function.

  • Set the cooking time to 15 minutes at high pressure.

  • Once the cooking cycle is complete, allow for a natural pressure release for about 10 minutes.

  • Carefully open the Instant Pot lid and use oven mitts or a trivet to remove the smaller pot.

  • Let the casserole cool for a few minutes before serving.

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 Oven Baked 
Cheesy Breakfast Potato, Sausage and Egg Casserole

  • Preheat your oven to 350°F (175°C).

  • Grease a 9x13 inch (23x33 cm) casserole dish with cooking spray or butter.

  • In a large mixing bowl, whisk together the eggs and milk. Season with garlic powder, salt, and pepper to taste.

  • Arrange a layer of thinly sliced potatoes in the bottom of the casserole dish.

  • Sprinkle a portion of the diced bell peppers, onions, and ham (or breakfast sausage) over the potatoes.

  • Pour a portion of the egg and milk mixture over the layers.

  • Sprinkle a portion of the shredded cheese over the layers.

  • Repeat the layering process, ending with a final layer of cheese on top.

  • Cover the casserole dish with aluminum foil.

  • Bake in the preheated oven for about 45-50 minutes, or until the potatoes are tender. You can test the potatoes with a knife or toothpick; it should easily go through when they are done.

  • Remove the foil and bake for an additional 10-15 minutes, or until the top is golden brown and the casserole is fully cooked.

  • Allow the casserole to cool for a few minutes before serving.

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Breakfast Casserole Tips and Tricks

Prep in Advance:

  • You can save time in the morning by preparing the casserole the night before. Layer all the ingredients, cover the casserole dish with plastic wrap or foil, and refrigerate. In the morning, simply bake it.

Even Potato Slices:

  1. To ensure even cooking, try to slice the potatoes to a uniform thickness. You can use a mandolin for precise slicing.

Pre-Boil Potatoes:

  1. If you prefer fully cooked potatoes in your casserole, consider pre-boiling them for a few minutes until slightly tender before assembling the casserole. This ensures they are fully cooked in the final dish.


  1. Pay attention to the layering of ingredients. Start with a base of potatoes, then add the vegetables, meats, and cheese. Repeat the layers, ending with a layer of cheese on top


  1. Be creative and customize the casserole with your favorite ingredients. You can add mushrooms, bell peppers, or other vegetables, or switch out the meat for a vegetarian option.


  1. Don't forget to season each layer with salt and pepper. You can also use your favorite herbs and spices to add flavor.

Let it Rest:

  1. Allow the casserole to rest for a few minutes after baking. This helps the layers settle and makes it easier to serve.

Serving Suggestions:

  1. Consider serving the casserole with condiments like ketchup, hot sauce, or salsa. Fresh herbs or chopped green onions make great garnishes.


  1. If you have leftovers, reheat individual portions in the microwave or a preheated oven until warm. The casserole can be just as delicious the next day.


  1. Store any leftover casserole in an airtight container in the refrigerator. It should be consumed within a few days.

Make-Ahead Breakfast Potato

Casserole. OAMC, Freezer Meal

Instructions for Freezer Meal:

  1. Follow the regular recipe instructions to assemble the casserole in a disposable aluminum foil casserole dish.

  2. Instead of baking it, cover the casserole dish tightly with aluminum foil.

  3. Label the foil with the date and cooking instructions (include the oven temperature and approximate cooking time).

  4. Place the covered casserole dish in the freezer. It's a good idea to double-wrap it in foil or place it in a freezer-safe container or bag for extra protection.

Instructions for Cooking from Frozen:

  1. When you're ready to enjoy the freezer meal, preheat your oven to the temperature indicated on the label.

  2. Place the frozen casserole directly in the preheated oven.

  3. Bake it covered for an extended time, usually about 1.5 to 2 times the original baking time, depending on your oven's temperature and the thickness of the casserole. It's done when it's hot in the center and the eggs are fully cooked.

  4. If you find the top is browning too quickly, you can cover it with foil to prevent over-browning while it continues to cook.

Using this method, you can prepare breakfast potato casserole ahead of time, freeze it, and then have a convenient and hearty meal whenever you need it. Just be sure to note the cooking instructions on the foil so you know how to bake it properly from frozen.

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