Wake up breakfast casserole is a tasty casserole made with eggs, hash brown patties, ham, and cheese. Prep the night before & bake your casserole in the oven OR make this fuss-free breakfast overnight in the slow cooker. This easy breakfast casserole is perfect for holiday brunch or anytime of the year!

Table of Contents
ToggleIngredients For Wake Up Casserole
The ingredients in the potato, egg, and cheese breakfast casserole are simple.
- Frozen Hash Brown Patties
- Cooked Ham
- Cheddar Cheese
- Veggies
- Eggs
- Milk
- Seasonings: salt, pepper, garlic powder

How To Make Wake Up Casserole
This breakfast dish comes together quickly and can be made ahead of time. You can bake or make this in the slow cooker. Instructions for both are included.
OVEN
- Preheat the oven to 375 degrees.
- Spray a large 9×13 casserole dish with cooking spray.
- Add the frozen hash brown patties (or another frozen potato) to the bottom of the casserole dish.
- Add the ham, bell pepper onion, and cheese.
- In a large bowl, whisk together the eggs, milk, salt, and pepper. Pour the egg mixture on top of the food in the casserole dish.
- Cover with foil & bake for 45 minutes. Uncover and bake an additional 10-15 minutes or until a knife inserted into the middle comes out clean.
- Spray the slow cooker generously with cooking spray.
- Add the frozen hash brown patties (or another frozen potato) to the bottom of the slow cooker.
- Add the ham, bell pepper onion, and cheese.
- In a large bowl, whisk together the eggs, milk, salt, and pepper. Pour the egg mixture on top of the food in the slow cooker.
- Cook LOW 4-6 hours.
FAQs & Tips
What Is A Wake Up Casserole?
A wake up casserole is a casserole that is made beforehand & sits in the refrigerator overnight until morning when you wake up to bake it. Hence the name ‘wake up casserole’. The base for this classic breakfast casserole is frozen hash brown patties, eggs, cooked ham, and cheese. In addition to these ingredients, I like to add vegetables like sautéed onion and bell pepper.
What Type Of Frozen Potatoes To Use
My version of wake up casserole uses hash brown patties. Of course you can substitute a different frozen potatoes. Shredded hash browns, tater tots, O’Brien potatoes, all work well with this recipe.
Can you use a different meat?
I like to use 2 cups of cooked ham for this breakfast casserole. This is good recipe to utilize leftover ham from the holidays! Of course you do not have to use ham. Cooked breakfast sausage or bacon are good substitutes. Or make this a vegetarian breakfast casserole and omit the meat all together. If you go this route, I encourage you to load up on the veggies.
Will this stick to the slow cooker?
There are a few things you can do so your casserole doesn’t stick to the slow cooker. For one, grease the heck out of it. I sprayed mine heavily with cooking spray but you can also wipe it down with oil or butter. Another option is to line your slow cooker with parchment paper or use a slow cooker liner. Also, let the casserole cool completely before removing it. This too will help it from not sticking to the base.
What size slow cooker did you use?
I use a 6-quart slow cooker for this recipe.
How do you store this?
Leftover wake up casserole will keep in the refrigerator for up to 4 days. Can you freeze leftover casserole? Yes! Another bonus about this recipe is that it can be frozen for later use. This is the case whether you cook the casserole in the oven or slow cooker.

Slow Cooker Breakfast Casseroles
PrintWake Up Breakfast Casserole
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5 from 2 reviews
Wake up breakfast casserole is a tasty casserole made with eggs, hash brown patties, ham, and cheese. Prep the night before & bake your casserole in the oven OR make this fuss-free breakfast overnight in the slow cooker. This easy breakfast casserole is perfect for holiday brunch or anytime of the year!
- Author: Shannon Epstein
- Prep Time: 20 minutes
- Cook Time: 60 minute
- Total Time: 1 hour 20 minutes
- Yield: 10-12 servings 1x
Ingredients
- 8 frozen hash brown patties or 16 ounces frozen hash browns or tater tots
- 2 cups cooked ham, diced
- 2 cups cheddar cheese, shredded
- 1 bell pepper, diced
- 1 small onion, diced
- 12 large eggs
- 1 cup milk of your choice
- 1 teaspoon salt (or more)
- 1/2 teaspoon pepper
- 1/4 teaspoon garlic powder
Instructions
OVEN
- Preheat the oven to 375 degrees.
- Spray a large 9×13 casserole dish with cooking spray.
- Add the frozen hash brown patties (or another frozen potato) to the bottom of the casserole dish.
- Add the ham, bell pepper onion, and cheese.
- In a large bowl, whisk together the eggs, milk, salt, and pepper. Pour the egg mixture on top of the food in the casserole dish.
- Cover with foil & bake for 45 minutes. Uncover and bake an additional 10-15 minutes or until a knife inserted into the middle comes out clean.
- Spray the slow cooker generously with cooking spray.
- Add the frozen hash brown patties (or another frozen potato) to the bottom of the slow cooker.
- Add the ham, bell pepper onion, and cheese.
- In a large bowl, whisk together the eggs, milk, salt, and pepper. Pour the egg mixture on top of the food in the slow cooker.
- Cook LOW 4-6 hours.
Notes
Every oven or slow cooker heats slightly different. Insert a knife into the center; when it comes out clean you’ll know your breakfast casserole is done.
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2 thoughts on “Wake Up Breakfast Casserole”
This looks delicious! Always happy for another casserole recipe. Totally making this later on this week!! Can’t wait!
This was amazing! And easy!