This corned beef casserole is a warm and hearty dish that’s perfect for a cozy dinner. With layers of tender corned beef, creamy potatoes, and cheesy goodness, it’s a real crowd-pleaser!
I love how easy it is to throw together. Just mix, layer, and bake! Plus, the leftovers are even better, so you might want to make extra—trust me, you’ll want more! 😋
Key Ingredients & Substitutions
Corned Beef: Using cooked corned beef is essential for this dish’s flavor. If you can’t find it, leftover roast beef or even pulled pork could work. Just be sure to adjust the seasoning since corned beef is usually salty.
Creamed Corn: This adds creaminess and sweetness. If you’re looking for a healthier option, you can substitute with a can of regular corn and some cream or milk to mimic the texture.
Sour Cream: It’s key for the creamy texture. You can swap this with Greek yogurt for a tangy flavor or even cottage cheese for a lighter version.
Cheddar Cheese: I love using sharp cheddar for its bold taste. If you’re looking for alternatives, you can go for Monterey Jack or Pepper Jack for some added kick.
Crackers/Breadcrumbs: Crushed crackers like Ritz provide a nice crunch. If you need a gluten-free option, look for gluten-free crackers or crushed corn chips!
How Can I Ensure My Casserole Turns Out Perfectly Creamy and Flavorful?
To achieve that creamy goodness in this casserole, it’s vital to mix all the base ingredients well before adding the corned beef. Make sure the creamed corn, sour cream, and eggs are nicely blended. This ensures every bite is flavorful and moist.
- Combine the creamed corn, sour cream, and mayonnaise first.
- Add the onions and cheese next before incorporating the beaten eggs.
- When mixing in the corned beef, do it gently to distribute it throughout without breaking it apart too much.
Season carefully because the corned beef has its own saltiness. Trust me, letting it cool a bit before serving allows it to set nicely, so be patient!

How to Make Corned Beef Casserole?
Ingredients You’ll Need:
Main Ingredients:
- 3 cups cooked corned beef, chopped or shredded
- 1 can (15 oz) creamed corn
- 1 cup sour cream
- 1/2 cup mayonnaise
- 1 medium onion, finely chopped
- 1 cup shredded cheddar cheese (plus extra for topping)
- 3 eggs, beaten
- 2 cups crushed crackers or breadcrumbs (like Ritz crackers)
- 2 tablespoons melted butter
- 1/4 cup chopped fresh parsley (optional, for garnish)
- Salt and pepper to taste
How Much Time Will You Need?
This corned beef casserole takes about 15 minutes to prepare and around 35-40 minutes to bake. So, in total, you should set aside about 55-60 minutes to get this delicious dish ready to enjoy!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 350°F (175°C). While the oven heats up, grease a 9×13 inch casserole dish to keep everything from sticking.
2. Mix the Base:
In a large mixing bowl, take the creamed corn, sour cream, mayonnaise, chopped onion, shredded cheddar cheese, and beaten eggs. Stir everything together well until it’s smooth and blended—this will be the foundation of your casserole!
3. Add the Corned Beef:
Now, gently stir in the cooked corned beef, making sure it gets evenly mixed throughout the creamy base. This helps ensure every bite is packed with flavor!
4. Season the Mixture:
Don’t forget to season your mixture with salt and pepper! Just a pinch will do—remember that corned beef can be quite salty already, so taste as you go.
5. Pour into the Casserole Dish:
Pour your corned beef mixture into the greased casserole dish. Spread it out evenly so it bakes nicely.
6. Prepare the Topping:
In a small bowl, mix the crushed crackers or breadcrumbs with the melted butter. This will create a delicious crunchy topping! Sprinkle this mixture evenly over the casserole.
7. Add Extra Cheese:
If you’re a cheese lover, now’s the time to sprinkle a little extra shredded cheddar cheese on top for a gooey finish.
8. Bake It:
Place your casserole in the preheated oven and bake for 35-40 minutes. You’ll know it’s ready when the top is golden brown and bubbly!
9. Garnish and Cool:
Once it’s out of the oven, take a moment to garnish it with chopped fresh parsley for a colorful touch. Let it cool for a few minutes—this helps it set up perfectly.
10. Serve and Enjoy!
Now your corned beef casserole is ready to be served! It pairs wonderfully with a simple green salad or some steamed veggies. Enjoy your delicious meal!
Can I Use Leftover Corned Beef for This Recipe?
Absolutely! Leftover corned beef is perfect for this casserole. Just chop or shred it into bite-sized pieces and mix it in with the other ingredients for a quick and delicious meal.
What Can I Substitute for the Creamed Corn?
If you don’t have creamed corn on hand, you can use a can of regular corn combined with about 1/2 cup of heavy cream or milk. This will give you a similar creamy texture while maintaining that sweet corn flavor.
How to Store Leftovers?
Leftover corned beef casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, just pop it in the microwave or warm it up in the oven until heated through.
Can This Casserole Be Made Ahead of Time?
Yes, you can prepare the casserole a day in advance and keep it covered in the fridge. When you’re ready to bake, just preheat the oven and bake it for a few extra minutes to ensure it’s heated through completely.



