Corned Beef and Potato Bake

Servings: 6-8 | Prep Time: 20 minutes | Cook Time: 45-50 minutes

Why You’ll Love This Recipe

This Corned Beef and Potato Bake is the ultimate comfort food casserole—hearty, savory, and incredibly satisfying. It’s like a deconstructed Reuben sandwich meets a creamy potato casserole, creating a dish that’s perfect for St. Patrick’s Day or any day you’re craving something warm and filling.

The combination of tender corned beef, creamy potatoes, and gooey melted cheese creates a rich, flavorful casserole that’s pure comfort. The cabbage adds a lovely texture and authentic Reuben flavor, while the creamy sauce ties everything together. It’s the kind of meal that brings everyone to the table and leaves them asking for seconds.

Whether you’re using leftover corned beef from St. Patrick’s Day or making it fresh, this casserole is easy, delicious, and guaranteed to become a family favorite.

Ingredients

2 pounds potatoes (russet or Yukon Gold), peeled and thinly sliced (about ⅛-inch thick)
1½ pounds cooked corned beef, chopped or shredded
2 cups chopped cabbage (optional, for extra Reuben flavor)
1 (10.5-ounce) can condensed cream of mushroom soup (or cream of chicken)
1 cup sour cream
1 cup shredded Swiss or cheddar cheese (divided)
1 teaspoon salt
½ teaspoon black pepper
½ teaspoon garlic powder
Optional: 1 cup crushed rye crackers or breadcrumbs for topping

Directions

1. Preheat and prepare. Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.

2. Layer the potatoes. Arrange half of the sliced potatoes in an even layer in the bottom of the prepared baking dish.

3. Add the meat and cabbage.Sprinkle the chopped corned beef and cabbage evenly over the potatoes.

4. Make the sauce. In a medium bowl, whisk together the cream of mushroom soup, sour cream, ½ cup of the shredded cheese, salt, pepper, and garlic powder until smooth.

5. Add the sauce. Pour half of the sauce mixture over the corned beef layer, spreading it evenly.

6. Layer the remaining potatoes.Arrange the remaining potatoes over the top of the sauce.

7. Top with remaining sauce and cheese. Pour the remaining sauce over the top layer of potatoes, spreading it evenly. Sprinkle with the remaining ½ cup of cheese. If using, sprinkle crushed rye crackers or breadcrumbs over the top.

8. Bake. Cover the dish with foil and bake for 30 minutes. Remove the foil and bake for an additional 15-20 minutes, until the potatoes are tender and the top is golden and bubbly.

9. Rest and serve. Let the casserole rest for 10 minutes before serving. This allows it to set and makes it easier to serve. Serve warm.

Variations

Reuben style: Add sauerkraut and use Thousand Island dressing in the sauce.
Different cheese: Try Gruyère, provolone, or mozzarella.
Add vegetables: Add sautéed onions, bell peppers, or mushrooms.
Herb-infused: Add fresh thyme, parsley, or dill.
Spicy kick: Add red pepper flakes or a dash of hot sauce.
Creamier: Replace half the soup with cream cheese.

Expert Tips

Slice potatoes thinly. Even slices ensure even cooking.
Use leftover corned beef. This is a perfect way to use up St. Patrick’s Day leftovers.
Don’t skip the rest. Resting helps the casserole set.
Cover with foil. This prevents the top from burning before the potatoes are tender.
Check potatoes. They should be fork-tender before removing from the oven.

Storage and Reheating

Storage: Store in an airtight container in the refrigerator for up to 4 days.

Reheating: Reheat in the microwave or in a 350°F oven for 15-20 minutes.

Freezing: Freeze for up to 3 months. Thaw overnight before reheating.

Frequently Asked Questions

Can I use raw corned beef? This recipe is best with pre-cooked corned beef. If using raw, cook it first.

Can I use canned corned beef? Yes, but fresh or deli corned beef gives better texture.

What if I don’t have cabbage? Omit it or use sauerkraut for a Reuben twist.

Can I use a different soup? Cream of chicken or celery works well.

What to Serve With This Bake

A fresh green salad
Rye bread or Irish soda bread
Pickles
A glass of Irish stout

Final Thoughts

This Corned Beef and Potato Bake is pure comfort food—hearty, creamy, and packed with flavor. It’s a delicious way to enjoy corned beef beyond St. Patrick’s Day!