Overnight breakfast casserole with ham and hash browns

Make Ahead Hash Brown Breakfast Casserole is a hearty casserole that’s sure to make your mornings run smoother! You’ll need simple ingredients to make this casserole; frozen hash browns, diced ham (or any other breakfast meat), eggs, milk, and grated cheese! Assemble it the night before and all that’s left in the morning is popping it in the oven!

Overnight breakfast casserole with ham and hash browns

We’ve been told for years that breakfast is the most important meal of the day, it’s also the most hectic meal of the day. I’m all over anything I can do the night before to make life easier in the morning. Just knowing breakfast is all assembled and hanging out in the fridge makes me sleep better!

Let’s talk about sleeping for a minute.

I’m one of the lucky ones that just can’t sleep past about 6:15 in the morning. There are so many nights when I climb under my covers and wish, and pray that I could sleep in just once. Just one time would be amazing! I turn my alarm off in hopes of waking up around 7:30 and feeling all sorts of rejuvenated.

Without fail, I roll over in the morning and peel my eyes open enough to see what time it is, and it’s always 6:15. Give or take 2 minutes! That’s right 6:17 makes you feel like a completely new woman!

Overnight breakfast casserole with ham and hash browns

Mornings are the busiest time of the day!

Maybe part of the reason I can’t sleep is because I feel like I’m the ONE and ONLY person in this house that’s responsible to make sure everyone gets up, gets a lunch out of the fridge and thrown into a lunch box. It’s my job to toss breakfast on the table. And for some crazy reason it’s also my job to make sure everyone has a jacket, hat, backpack, books, homework, pencil, helmet for football practice, on and on.

I swear if I didn’t get my rear out of bed in the mornings and wake everyone up, they’d still be nestled under their covers at 9:00, unless they wanted to do something fun like go hunting. They always manage to hear their alarm clocks and jump right out of bed for early morning hunting trips.

Anyway, in an effort to make life easier in the mornings I always try to either make breakfast the night before, or at least have a game plan for the next day.

Overnight breakfast casserole with ham and hash browns

Easy Make Ahead Breakfast Recipes

Here are a few other super simple make ahead breakfasts you might fall in love with. They’re all hearty enough to fill up my hungry boys, which is really saying something!

  • Hot Breakfast Egg and Cheese Sliders
  • Breakfast Burrito Bowls
  • Freezer Breakfast Burritos
  • Ham and Cheese Breakfast Quesadillas

Overnight breakfast casserole with ham and hash browns

How to make breakfast ahead of time.

Making Hash Brown Breakfast Casserole ahead of time is really simple.

First, follow the directions to completely assemble the casserole. Then you  have three options.

  1. Bake immediately, then serve.
  2. Bake, cool. Refrigerate for later. Warm up single servings in the microwave as needed. This is a great option for those days when the whole family is running in different directions.
  3. Refrigerate. I usually refrigerate overnight. Bake an hour before you would like to serve the casserole.

Overnight breakfast casserole with ham and hash browns

Can I customize Make Ahead Hash Brown Breakfast Casserole?

Yes! Feel free to customize this casserole anyway you like!

My family loves it with browned and crumbled breakfast sausage. It’s also delicious with fried bacon, or a combination of any breakfast meats.

My mom adds green chilies to her breakfast casserole and my boys freak every single time! Add them if you’d like!

Of course you can top your casserole with your favorites. Sour cream, salsa, ketchup, parsley, or whatever you love.

Overnight breakfast casserole with ham and hash browns

Grab the Make Ahead Hash Brown Breakfast Casserole recipe!

Pin it for later, or print it out!

If you are the early bird at your house I sincerely hope you get to sleep in soon! No one can burn the candle at both ends forever without wearing down!

Overnight breakfast casserole with ham and hash browns

Course Breakfast

Cuisine American

Prep Time 15 mins

Total Time 1 hr 5 mins

Make Ahead Hash Brown Breakfast Casserole is a hearty casserole with diced ham, plenty of gooey cheese, and frozen hashbrowns. It's super easy to make. Bake it and serve it, or refrigerate overnight and bake it in the morning!

  • 20 oz Hash Browns Frozen
  • 6 eggs
  • 1 cup evaporated milk
  • 2 cups ham diced
  • 1 cup cheddar cheese grated
  • 1 cup Swiss cheese grated
  • 1/4 cup butter melted
  • 1/2 tsp salt or to taste
  • 1/2 tsp pepper or to taste

  • Preheat oven to 350 degrees, if you are baking casserole immediately.

  • Spray 9 x 13 pan with nonstick baking spray.

  • Spread hash browns evenly in baking dish.

  • Season with salt and pepper. I usually start with 1/2 tsp each, then adjust to taste.

  • Drizzle melted butter over hash browns.

  • Spread diced ham, or other cooked breakfast meat, over hash browns. Sprinkle grated cheese over potatoes.  Gently stir.

  • Whisk eggs. Add milk and whisk together. Pour egg mixture over hash browns. Gently stir.

  • Cover baking dish with aluminum foil. Bake for 45 minutes. Remove foil and bake for 5-10 more minutes or until its bubbly and cooked through.

Directions for making ahead of time.

  • Assemble breakfast casserole. Cover with foil. Refrigerate. When you are ready to bake preheat oven to 350 degrees and bake for 55 minutes. Remove foil and bake 5-10 more minutes or until bubbly.

Overnight breakfast casserole with ham and hash browns

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Why is my hash brown casserole soggy?

Drain thawed frozen hash browns of any excess moisture otherwise it can make your casserole soggy. Don't use just shredded potatoes. You can make your own hash browns but you must soak the shredded potatoes and dry them very well (see instructions in post). Still, frozen hash browns are optimal because they are drier.

Can you make a casserole with raw egg and leave it uncooked overnight in fridge?

Cover the baking pan with aluminum foil and refrigerate for up to 48 hours. Preheat an oven to 350 degrees Fahrenheit when you're ready to cook and serve the casserole.

Do I have to thaw frozen hash browns for casserole?

Like many frozen ingredients, however, frozen hash browns should be thawed before they are baked into a casserole or used in another dish. Thawing hash browns will guarantee that you have the tastiest dish possible and that they are cooked all the way through.

Do you have to refrigerate breakfast casserole before cooking?

You can either bake breakfast casserole immediately or cover the dish with plastic wrap or foil and refrigerate for up to 24 hours to bake later.