Breakfast Casserole 

Updated Oct. 12, 2023

Breakfast Casserole 
Christopher Testani for The New York Times. Food Stylist: Simon Andrews.
Total Time
1 hour 20 minutes
Prep Time
10 minutes
Cook Time
1 hour 10 minutes
Rating
4(836)
Comments
Read comments

The breakfast casserole is a perennial favorite for good reason: It’s easy to make, crowd-pleasing and endlessly customizable. Frozen hash browns provide great texture in this simple version, but feel free to use leftover cooked potatoes, diced into ½-inch pieces, in their place. Fry up a pound of bacon or use ½ pound of cubed ham instead of the Italian sausage, and experiment with different shredded cheeses. Made as written, or with your own additions, this casserole is a dependable and delicious breakfast standby.

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Ingredients

Yield:8 servings
  • Unsalted butter, for greasing
  • 1pound frozen diced or shredded hash browns 
  • Olive oil
  • 1pound bulk breakfast sausage or Italian sausage, casings removed (or 12 ounces smoked bacon, cooked; see Tip)
  • 12large eggs
  • 2cups whole milk
  • teaspoons kosher salt (such as Diamond Crystal)
  • 1teaspoon Italian seasoning
  • ½teaspoon black pepper
  • 2cups/8 ounces shredded sharp Cheddar 
  • Chopped fresh scallions or chives (optional), for serving
Ingredient Substitution Guide
Nutritional analysis per serving (8 servings)

696 calories; 54 grams fat; 20 grams saturated fat; 0 grams trans fat; 21 grams monounsaturated fat; 8 grams polyunsaturated fat; 24 grams carbohydrates; 2 grams dietary fiber; 4 grams sugars; 28 grams protein; 936 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Heat the oven to 350 degrees and grease a 9-by-13-inch ceramic or metal baking dish with butter. Set the hash browns out at room temperature to thaw slightly, breaking up any clumps.

  2. Step 2

    Heat 1 tablespoon of olive oil in a large skillet over medium. Add the sausage and cook, breaking up the meat with a spoon, until browned and starting to crisp, 5 to 8 minutes. Using a slotted spoon, transfer the sausage to a paper towel-lined plate.

  3. Step 3

    In a large bowl, whisk the eggs, milk, salt, Italian seasoning and pepper.

  4. Step 4

    Place the hash browns in the prepared baking dish, along with the cooked sausage and the cheese. Toss until combined, then spread into an even layer. Pour in the egg mixture, making sure the hash browns are submerged.

  5. Step 5

    Bake, uncovered, until the eggs are set and the casserole is lightly browned at the edges, 45 to 50 minutes. Cool for 10 minutes, then top with scallions, if using. Cut into squares and serve.

Tip
  • If using bacon, fry the bacon strips in a large skillet set over medium heat, turning occasionally, until the bacon is crisp. Transfer to a paper towel-lined plate to drain, then cut into ½-inch pieces.

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Ratings

4 out of 5
836 user ratings
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Comments

It might be a good idea to bake the hash browns for 10-13 minutes in the bottom of the casserole and then add the egg mixture and finish baking. This crisps up the potatoes a little, giving a more layered effect to the casserole.

If there's water in the bottom of your pan after cooking this for 45 minutes at 350, there is a good chance that you have overcooked the casserole. When eggs are cooked perfectly, there is no water. Once they start overcooking the proteins constrict in the eggs and start releasing water. The best thing to do is take it out of the oven immediately and let it sit for a minute to reabsorb the water. Similar to cooking a steak.

I have done this without the meat. Additions have been onions, colored peppers, diced broccoli, and a dash of hot sauce. It repeats well, but freezing and reheating did not.

I precooked the sausage and onion and broke the eggs the night before for a fast prep in the a.m. I used 1 cup sour cream and 1/2 cup milk for a perfect texture. I added a sautéed onion and used Italian sausage. I melted about 1 1/2 T of butter in the pan, then mixed in the thawed hash browns. I broiled the hash browns for about 10 minutes (watch carefully). I mixed about a T of flour into the cheese, sausage,and onion, then mixed that into the egg and milk mixture. The result was delicious!

This is a great breakfast dish. I added some chopped spinach and used shredded gruyere/Swiss cheese instead chedder. It comes together easily.

good suggestion on the bacon. i put the slices i want to cut in the freezer for 15 minutes, then just use my chefs knife to cut@Maimeo

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