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Cheesy Corned Beef Hash Breakfast Casserole

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This Cheesy Corned Beef Hash Breakfast Casserole is the perfect breakfast option for this St. Patrick’s Day.

corned beef hash casserole on white plate


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Full Recipe Ingredients/Instructions are available in the 
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Alright, it’s February and I’ve already been thinking about St. Patrick’s Day. Whenever I realize St. Patrick’s Day is among us, I get ready with the mint desserts, corned beef recipes, and lucky charms. I know, there is a lot of history behind the Holiday and I appreciate that…but I really get excited about them turning that river in Chicago green.I know, I’m a little nerdy but green is my favorite color.

So about this corned beef hash breakfast casserole… I’m a lover of make ahead easy breakfast recipes and this casserole is just that. I like to make it on a meal prep day and eat it for a few days of the week by popping it in the microwave. Of course, that’s only when there are any leftovers.

Most of my egg casseroles are meatless but I wanted to get a little creative with this one with the corned beef. Once we tried it, we loved it and I’ve made it this way a few times already. Hope you enjoy this corned beef hash casserole as much as we do.

Notes on Cheesy Corned Beef Hash Breakfast Casserole

  • If making this as a make ahead breakfast, just keep it on the fridge and warm it up in the microwave for breakfast. I keep it for 3 days at the most.
  • The corned beef can be substituted by any other deli meat but tis the season for corned beef.

Need more St. Patrick’s Day meal ideas? Check out my Corned Beef and Cabbage – Jamaican Style and my Mint Oreo Cupcakes for Two

Need more Breakfast recipes? Try these out:

Instant Pot Egg Bites

Air Fryer Egg Frittata

Breakfast Air Fried Potatoes

Million Dollar Bacon

Banana Oatmeal Pancakes

Corned Beef Hash Breakfast. Corned beef casserole for breakfast. Perfect for meal prep. Perfect for a St. Patrick's Day Breakfast
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4.50 from 8 votes

Cheesy Corned Beef Hash Breakfast Casserole

Cheesy Corned Beef Hash Breakfast Casserole. Perfect breakfast casserole. 
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 8
Calories 162.4kcal
Author Tanya


  • 1 medium Russet potato chopped
  • 1/4 cup water
  • 5 eggs
  • 1/4 cup milk
  • 1/4 lb deli corned beef chopped
  • 1 roma tomato chopped
  • 3 green onions chopped
  • 1 teaspoon hot sauce optional
  • 1/2 teaspoon salt
  • 1/2 teaspoon paprika
  • 1/8 teaspoon black pepper
  • 1 cup sharp cheddar cheese shredded


  • Preheat oven to 350 degrees
  • Add potato and 1/4 cup water to a microwave safe bowl. Cover and microwave for 4 minutes or until softened. set aside,
  • Whisk eggs and milk in a bowl. Add potatoes, corned beef, tomatoes, green onion, hot sauce, paprika, salt, black pepper, and 1/2 cup cheddar cheese. Stir to combine. 
  • Place in greased 1.5 qt casserole dish and top with remaining cheese. 
  • Bake for 35-40 minutes or until eggs are set and cheese is bubbling. 


Calories: 162.4kcal
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Although attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will be responsible for any loss or damage resulting for your reliance on nutritional information.

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4.50 from 8 votes (7 ratings without comment)
Recipe Rating

Karen g

Sunday 7th of April 2024

What about the potato? Just mix it in ?? Minced ?


Sunday 7th of April 2024

My apologies Karen g, the potatoes should be microwaved first and then added to the remaining ingredients.


Monday 15th of March 2021

Thank you, Tanya! This breakfast recipe will be great, and I plan to make it this week!


Wednesday 6th of February 2019

Just wondering if you have attempted this in the Ninja Foodi?


Wednesday 6th of February 2019

Nope, not yet. But now I will. I would just use the bake or air crisp function of the Ninja when I do, no need to pressure cook it.

Agness of Run Agness Run

Tuesday 28th of February 2017

Love the combination of ingredients, Tanya! You gave me a great idea for tomorrow;s breakfast!


Monday 20th of March 2017

Yay, I bet that breakfast was so delicious!