Corned Beef and Potato Bake

This Corned Beef and Potato Bake is a simple, hearty casserole made with tender potatoes, savory corned beef, onions, and a rich baked flavor that makes it perfect for family dinners. It is especially useful when you have leftover corned beef and want to turn it into an easy, comforting meal.

The sliced potatoes become tender and lightly golden while the corned beef adds plenty of savory flavor. Onion, garlic, broth, and a few basic seasonings bring everything together into a satisfying casserole that works well for lunch or dinner.

Why You’ll Love This Recipe

• Easy way to use leftover corned beef
• Simple, budget-friendly ingredients
• Hearty and filling
• Perfect for weeknight dinners
• Comforting potato casserole
• Easy to prepare ahead
• Great for family meals

Ingredients

• 1 1/2 pounds Yukon Gold or russet potatoes, sliced into 1/4-inch rounds
• 3 cups cooked corned beef, shredded or chopped
• 1 large yellow onion, thinly sliced
• 2 cloves garlic, minced
• 2 tablespoons butter
• 1 tablespoon olive oil
• 1 cup beef broth
• 1 tablespoon Worcestershire sauce
• 1 teaspoon Dijon mustard
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon dried thyme
• 1/2 teaspoon black pepper
• 1/4 teaspoon salt, or to taste
• 2 tablespoons chopped parsley, optional

How to Make Corned Beef and Potato Bake

Step 1: Preheat the Oven

Preheat the oven to 375°F (190°C).

Lightly grease a 9×13-inch baking dish with butter or nonstick cooking spray.

Step 2: Prepare the Potatoes

Wash and peel the potatoes if desired.

Slice them into approximately 1/4-inch rounds. Try to keep the slices similar in thickness so they cook evenly.

Step 3: Cook the Onion

Heat the butter and olive oil in a large skillet over medium heat.

Add the sliced onion and cook for about 6 to 8 minutes, stirring occasionally, until softened and lightly golden.

Add the minced garlic and cook for another 30 seconds.

Step 4: Make the Savory Sauce

Pour the beef broth into the skillet.

Add Worcestershire sauce, Dijon mustard, garlic powder, onion powder, thyme, black pepper, and salt.

Stir well and simmer for 2 to 3 minutes.

Step 5: Assemble the First Layer

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

Top with half of the corned beef and half of the cooked onion mixture.

Step 6: Repeat the Layers

Add the remaining potatoes, corned beef, and onions.

Pour the seasoned broth mixture evenly over the casserole.

Step 7: Bake Covered

Cover the baking dish tightly with aluminum foil.

Bake for 40 minutes.

Step 8: Finish Uncovered

Remove the foil and continue baking for another 20 to 25 minutes, or until the potatoes are fork-tender and the top is lightly browned.

If you want extra color on the potatoes, broil for 1 to 2 minutes at the end, watching carefully.

Step 9: Rest and Serve

Remove the casserole from the oven and let it rest for about 10 minutes.

Sprinkle with chopped parsley if desired and serve warm.

Tips for the Best Corned Beef and Potato Bake

• Slice the potatoes evenly: Uniform slices cook at the same rate.
• Do not oversalt: Corned beef is naturally salty, so taste carefully before adding extra salt.
• Use leftover corned beef: This recipe is an excellent way to repurpose leftovers.
• Cover during the first part of baking: This helps the potatoes soften without drying out.
• Uncover at the end: This allows the top to brown and develop more flavor.

Easy Variations

Cheesy Corned Beef and Potato Bake

Sprinkle 1 1/2 cups shredded cheddar cheese over the top during the final 15 minutes of baking.

Creamy Version

Replace 1/2 cup of the beef broth with heavy cream for a richer casserole.

Cabbage and Corned Beef Bake

Add 2 cups of thinly sliced cabbage between the potato and corned beef layers.

Carrot and Potato Version

Add thinly sliced carrots for extra color and sweetness.

Spicy Version

Add crushed red pepper flakes or a small amount of prepared horseradish to the broth mixture.

What to Serve with Corned Beef and Potato Bake

• Steamed cabbage
• Green beans
• Roasted carrots
• Garden salad
• Crusty bread
• Pickles
• Roasted Brussels sprouts

Make-Ahead Instructions

You can assemble the casserole up to 24 hours ahead.

Cover tightly and refrigerate until ready to bake. If baking directly from the refrigerator, add about 10 extra minutes to the covered baking time.

Storage

Refrigerator

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

Freezer

Freeze cooled portions in freezer-safe containers for up to 2 months.

Thaw overnight in the refrigerator before reheating.

Reheating

Reheat covered in a 350°F oven until hot throughout.

Individual portions can also be reheated in the microwave.

Recipe Information

• Prep Time: 20 minutes
• Cook Time: 1 hour 5 minutes
• Rest Time: 10 minutes
• Total Time: 1 hour 35 minutes
• Servings: 6
• Course: Main Dish
• Cuisine: American
• Calories: Approximately 430 calories per serving

Frequently Asked Questions

Can I use canned corned beef?

Yes. Canned corned beef can be used, but the texture will be softer and usually saltier than cooked corned beef brisket.

What potatoes work best?

Yukon Gold potatoes are especially good because they become tender while holding their shape. Russet potatoes also work well and create a softer texture.

Do I need to boil the potatoes first?

No. Thinly slicing the potatoes allows them to cook completely in the casserole.

Can I add cheese?

Yes. Cheddar, Swiss, Monterey Jack, or Gruyère all pair well with corned beef and potatoes.

Why are my potatoes still firm?

The slices may be too thick or the casserole may need additional covered baking time. Continue baking until a fork slides easily through the potatoes.

Can I add cabbage?

Yes. Thinly sliced cabbage works very well and gives the casserole a classic corned beef dinner flavor.

Can I make this with leftover roast beef?

Yes. Leftover roast beef can replace corned beef, although the overall flavor will be less salty and slightly different.

Final Thoughts

This Corned Beef and Potato Bake is a practical, comforting way to turn tender potatoes and savory corned beef into an easy family casserole. The combination of onions, garlic, broth, and simple seasonings creates plenty of flavor without making the recipe complicated.

It is especially useful for leftover corned beef, but it also works as a straightforward dinner any time you want a hearty potato-based meal with classic savory flavor.