Corned Beef Hash and Egg Bake: Hearty One-Dish Breakfast Tips, FAQ & printable recipe

Tips for success

For the crispiest potatoes, make sure they are well-drained and not too moist before adding to the dish. If using leftover boiled potatoes, you can pat them dry with a paper towel.

For extra flavor, you can sauté the potatoes and corned beef briefly in a skillet with a little butter before adding them to the baking dish—this adds a golden, caramelized edge.

The egg-to-milk ratio is key to a tender custard. Too much milk can make the bake watery, while too little makes it dense. Stick to 1/2 cup of milk for 8 eggs.

Also, be generous with the cheese—it not only adds flavor but also helps the top brown beautifully. If you prefer a spicier kick, add a pinch of cayenne or smoked paprika to the egg mixture.

Variations

• Add vegetables: Sauté diced bell peppers, onions, or spinach and mix them into the potato layer before adding the eggs. This adds color and extra nutrients without changing the cooking time.
• Use different cheese: Swap Swiss for sharp cheddar, Gruyère, or pepper Jack for a different flavor profile. Smoked Gouda also works well with the corned beef.
• Spice it up: Add a dash of hot sauce, a pinch of cayenne, or some diced jalapeños to the egg mixture for a spicy kick. Serve with extra hot sauce on the side.
• Make it crustless quiche: Pour the mixture into a pie dish and bake for 25-30 minutes for a thicker, quiche-like texture. This is perfect for a smaller gathering.

Storage and make-ahead

Fridge

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in the microwave or oven until hot and bubbly.

Freezer

Freeze the baked and cooled casserole for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheat

Reheat individual squares in the microwave for 1-2 minutes, or in a 350°F (175°C) oven for 10-15 minutes until warmed through.

Store leftover corned beef hash and egg bake in an airtight container in the refrigerator for up to 4 days.

Reheat individual portions in the microwave or in a 350°F (175°C) oven until warmed through. The bake can also be frozen for up to 2 months; wrap tightly in plastic wrap and foil before freezing.

Assemble the bake up to 24 hours in advance, cover with plastic wrap, and refrigerate. When ready to bake, let it sit at room temperature for 30 minutes, then bake as directed, adding 5-10 minutes to the cooking time if starting from cold. The rest time and final temperature remain the same.

Serving ideas

Serve the corned beef hash and egg bake warm, straight from the baking dish, cut into squares. It pairs beautifully with a simple green salad, roasted tomatoes, or a side of fresh fruit.

For a brunch spread, offer it alongside muffins, scones, or a basket of toasted bagels. A dollop of sour cream or a sprinkle of fresh chives can brighten each serving.

This bake is substantial enough to be the main event, but it also works as a side dish for a larger holiday breakfast. Leftovers are delicious reheated for a quick breakfast or brunch the next day. The flavors meld even more overnight, making it a great make-ahead option for busy mornings.

Frequently asked questions

Recipe card

Corned Beef Hash and Egg Bake: Hearty One-Dish Breakfast

Prep 15 minCook 35 minRest 5 minTotal 55 minServes 6

Ingredients

• 3 cups diced cooked potatoes
• 2 cups diced cooked corned beef
• 8 large eggs
• 1/2 cup whole milk
• 1 1/2 cups shredded Swiss cheese
• 1/2 tsp kosher salt
• 1/4 tsp black pepper

Instructions

1. Heat the oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish. Spread the diced cooked potatoes and corned beef evenly in the dish, making sure the cubes are in a single layer so they crisp up during baking.
2. In a large bowl, crack the eggs and add the milk, salt, and pepper. Whisk until the yolks are completely broken and the mixture is uniform and slightly frothy.
3. Pour the egg mixture evenly over the potatoes and corned beef. Tilt the dish slightly or use a spatula to nudge the cubes so the eggs settle around them.
4. Sprinkle the shredded Swiss cheese evenly over the top, covering the entire surface. Use your fingers to scatter it so it melts into a golden, bubbly crust.
5. Place the dish in the oven and bake for 30 to 35 minutes, until the edges are bubbling and the center is just set—no longer jiggly. The top should be puffed and deeply golden in spots.
6. Remove the bake from the oven and let it rest for 5 minutes. This allows the eggs to finish setting and makes cutting neat squares easier.
7. Use a spatula to lift out neat squares, making sure to get the crispy edges and the cheesy top. Serve warm, straight from the dish.

Contains: eggs, milk

Estimated nutrition per serving

Calories

370

Protein

24 g

Carbohydrates

18 g

Fat

22 g

Fiber

2 g

Sugar

2 g

Automatic estimate from the ingredient list, not laboratory-verified.