This corned beef casserole is a delicious mix of tender corned beef, creamy sauce, and cheesy goodness. It’s perfect for a cozy dinner that warms you from the inside out!
Believe me, this dish will be a hit! I love how easy it is to prepare; just layer everything and pop it in the oven. You might even have leftovers—if you can resist snacking on it first! 😄
Ingredients & Substitutions
Potatoes: You can use either diced or mashed potatoes. I often prefer using mashed potatoes for a creamier texture. If you’re short on time, frozen hash browns can also work well as a quick substitute!
Corned Beef: Canned corned beef is convenient, but you can also use leftover corned beef if you have any. Just make sure to dice it well. It gives a homemade touch, which I really enjoy!
Cheddar Cheese: While I love sharp cheddar for its strong flavor, feel free to mix it with Monterey Jack or even Gouda for a different twist. If you’re dairy-free, try using a plant-based cheese instead.
Evaporated Milk: If you don’t have evaporated milk, heavy cream works great for a richer flavor. For a lighter option, use regular milk. I sometimes use almond milk for a dairy-free version, but the consistency will be a bit thinner.
Creamed Corn: You can substitute with fresh or frozen corn kernels if you prefer. Just add a little extra cream or milk for moisture since creamed corn adds creaminess to the dish.
How Do I Ensure the Casserole Sets Perfectly?
Getting that perfect set on your casserole is key. Here are a few tips to help you achieve that golden finish:
- Mix the egg and milk mixture thoroughly; this helps bind everything together.
- Spread your casserole evenly in the baking dish to ensure even cooking.
- Check if it’s done by inserting a knife in the center; it should come out clean.
- Let it cool a bit after baking. This helps it firm up more as it sits.
Trust me, a little patience makes all the difference for that satisfying slice!

How to Make Corned Beef Casserole
Ingredients You’ll Need:
For the Casserole:
- 2 cups cooked potatoes, diced or mashed
- 1 can (12 oz) corned beef, diced
- 1 medium onion, finely chopped
- 1 cup shredded cheddar cheese
- 1 cup evaporated milk or cream
- 2 large eggs
- 1 cup canned creamed corn or corn kernels
- 2 tablespoons butter, melted
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon dried thyme (optional)
- Salt to taste
- Fresh parsley, chopped (for garnish)
How Much Time Will You Need?
This corned beef casserole will take you about 10 minutes to prepare and 30-40 minutes to bake. So, in total, you’re looking at about 45-50 minutes from start to finish. Perfect for a quick and comforting meal!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 375°F (190°C). While it’s heating up, lightly grease a medium-sized baking dish so your casserole doesn’t stick.
2. Mix the Main Ingredients:
In a large bowl, combine your cooked potatoes, diced corned beef, finely chopped onion, and the creamed corn (or corn kernels). Give this mixture a good stir to make sure everything is evenly mixed.
3. Prepare the Egg Mixture:
In another bowl, whisk together the eggs, evaporated milk (or cream), melted butter, black pepper, garlic powder, thyme (if using), and a pinch of salt. Mixing this well will help bind your casserole together.
4. Combine Everything:
Pour the egg and milk mixture into the potato and corned beef mixture. Stir everything together well until all the ingredients are coated and combined nicely.
5. Transfer to the Dish:
Now, transfer your mixture into the greased baking dish and spread it out evenly. This ensures that it cooks uniformly.
6. Add the Cheese:
Sprinkle the shredded cheddar cheese evenly over the top of the casserole. Don’t be shy with that cheese—it’s what makes it delicious!
7. Bake the Casserole:
Place your baking dish in the preheated oven and bake for about 30-40 minutes. You’re looking for the casserole to be set and the top to be golden brown and bubbly. It’s so satisfying to see that color!
8. Cool and Serve:
Once it’s done baking, carefully remove it from the oven and let it cool for a few minutes. This will help it firm up a little more. Trust me; it’s worth the wait!
9. Garnish and Enjoy:
Before serving, garnish your casserole with some freshly chopped parsley for a pop of color and flavor. Dig in and enjoy the comforting, delicious flavors of your corned beef casserole!
This casserole combines the comforting flavors of corned beef, corn, and creamy potatoes into a delicious baked dish with a browned cheesy top. Enjoy!
Can I Use Leftover Corned Beef in This Casserole?
Absolutely! Leftover corned beef works great here and adds a homemade touch. Just make sure to dice it finely for even distribution in the casserole.
How Can I Make This Recipe Gluten-Free?
This casserole is naturally gluten-free since it doesn’t require any flour or breadcrumbs. Just ensure that the corned beef and other processed ingredients (like canned corn) are labeled as gluten-free.
What Should I Do If the Casserole Seems to Be Dry?
If your casserole looks a bit dry after baking, you can add a little extra milk or cream on top before returning it to the oven for a few more minutes. This helps make it creamier and more moist!
How Do I Store Leftover Casserole?
To store leftovers, let the casserole cool completely, then transfer it to an airtight container. It can be kept in the fridge for up to 3 days. Reheat gently in the microwave or oven before serving!



