Hash Brown Breakfast Casserole

Ingredients

• 5 slicesbacon, diced
• 1yellow onion, diced
• 8 largeeggs
• 45 ml (3 tablespoons)milk
• 5 ml (1 teaspoon)salt
• 2.5 ml (½ teaspoon)black pepper
• 1.25 ml (¼ teaspoon)ground nutmeg
• 15 g (¼ cup)baby spinach, chopped
• 5 ml (1 teaspoon), optionalhot sauce
• About 520 g (4 cups), thawedhash browns
• 340 g (12 ounces)Swiss cheese, shredded
• To tastechives, chopped, for optional garnish

Instructions

1. 1

   Preheat the oven

   Heat the oven to 180°C (350°F). Grease a 23 x 33 cm (9 x 13-inch) baking dish and set it aside.

2. 2

   Cook the bacon

   Cook the diced bacon in a frying pan over medium heat for 5 minutes.

3. 3

   Add the onion

   Add the onion and cook until it is translucent and the bacon is crisp. Take the pan off the heat and set it aside.

4. 4

   Whisk the eggs

   In a large bowl, whisk together the eggs, milk, salt, pepper, nutmeg, spinach and hot sauce, if using.

5. 5

   Combine the mixture

   Add the hash browns, cheese, bacon and onion to the egg mixture. Stir until combined.

6. 6

   Bake the casserole

   Pour the mixture into the prepared baking dish and bake for 40 to 45 minutes, until the centre is set.

7. 7

   Garnish and serve

   Scatter chopped chives over the casserole, if desired, and serve.

What is a hash brown breakfast casserole?

Hash browns are grated or shredded potatoes, and in this American-style breakfast bake they are combined with eggs, cheese and savoury additions. The result is a sliceable casserole that brings several familiar breakfast ingredients together in one dish.

This version pairs bacon and Swiss cheese with spinach, onion and a little nutmeg. The egg mixture binds the thawed potatoes as it bakes, while the optional hot sauce gives the filling a mild kick.

Nutrition and macros by portion

The nutrition label shows one serving as written: 442 calories, 26g protein, 28g carbs, 25g fat.

The hash browns and onion provide most of the carbohydrates, while bacon, eggs and Swiss cheese contribute much of the protein and fat. Serve a portion with fruit or a green salad for a fresh, balanced plate.

Choose the right hash browns

Thawed potatoes: use hash browns that are fully thawed before mixing them in, as directed. If they seem very wet, gently press out excess moisture so the casserole is less likely to turn soggy.

Even pieces: keep the potatoes reasonably loose rather than pressing them into a dense mass. That makes it easier for the egg mixture to spread through the filling.

Build flavour in the pan

Bacon and onion: cook them together until the onion is translucent and the bacon is crisp. This brings the savoury elements together before they are stirred into the eggs.

Swiss cheese: shredding the cheese helps it distribute through the casserole. The recipe uses 340 g, so expect a rich, cheesy filling rather than a lightly dressed potato bake.

Mix without losing the texture

Egg base: whisk the eggs with the milk, seasonings, spinach and optional hot sauce before adding the solid ingredients. This spreads the seasoning through the liquid mixture.

Final mix: fold in the hash browns, cheese, bacon and onion until combined. Avoid packing the mixture down in the dish; an even, loose layer helps it bake uniformly.

Check when it is set

Baking time: the casserole takes 40 to 45 minutes at 180°C (350°F), after the bacon and onion have been cooked. The full preparation and cooking time is about 55 minutes.

Centre cue: look for a set centre rather than relying only on the clock. If the middle still looks loose, continue baking until it has firmed up.

Serve it for breakfast or brunch

For a simple plate: serve a square of casserole with fresh fruit or a crisp green salad. These lighter sides bring freshness alongside the cheesy potatoes and bacon.

For a fuller spread: add toast or another breakfast side, and offer extra hot sauce at the table. Chives make an optional fresh garnish just before serving.

Recipe notes & tips

• Thaw the hash browns before combining them with the egg mixture.
• Shred the Swiss cheese yourself if you want it to mix evenly through the filling.
• Cook the bacon and onion until the bacon is crisp and the onion translucent before adding them to the bowl.
• Whisk the eggs and seasonings thoroughly so the mixture is evenly seasoned.
• Let the casserole centre set fully before taking the dish out of the oven.

Variations

• More greens: Add extra chopped spinach for a more vegetable-forward filling.
• Extra heat: Increase the hot sauce slightly or serve additional sauce alongside.
• Different cheese: Swap the Swiss cheese for another good-melting cheese.
• Meat-free: Leave out the bacon and cook the onion in a little oil instead.
• Fresh herbs: Use chopped parsley in place of the chives for the garnish.

Common mistakes to avoid

• Using frozen hash browns: Thaw them first so the casserole bakes as intended.
• Leaving excess moisture: Press very wet thawed potatoes gently before mixing to help avoid a soggy result.
• Undercooking the bacon: Cook it until crisp, as the recipe directs, before combining it with the other ingredients.
• Uneven mixing: Stir the filling until combined so the eggs, cheese and additions are spread through the potatoes.
• Taking it out too soon: Bake until the centre is set, allowing extra time within the stated 40 to 45 minutes if needed.

How to store

Refrigerate leftover casserole in a covered container and eat within 3 days. Reheat portions in the oven or microwave until hot throughout.

Frequently asked questions