Description

This Hard-Boiled Egg Casserole is a savory and comforting breakfast dish featuring layers of sliced hard-boiled eggs, crumbled breakfast sausage, and melted Cheddar cheese baked in a creamy, flavorful custard. Perfect for a hearty family brunch or a make-ahead breakfast, it combines simple ingredients into a deliciously satisfying casserole with a golden, bubbly cheese topping.

Ingredients

Scale

Eggs and Meat

8 hard-boiled eggs, peeled and sliced
1/2 pound breakfast sausage, cooked and crumbled

Dairy and Cheese

1 cup shredded Cheddar cheese
1/2 cup milk
1/2 cup heavy cream
2 tablespoons butter (plus additional butter for greasing the dish)

Spices

1 teaspoon mustard powder
1/2 teaspoon salt
1/2 teaspoon black pepper
1/4 teaspoon garlic powder
1/4 teaspoon onion powder

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Instructions

Preheat and Prepare Dish: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish generously with butter to prevent sticking and add flavor.
Layer Eggs and Sausage: Arrange the sliced hard-boiled eggs evenly across the bottom of the prepared baking dish. Sprinkle the cooked and crumbled breakfast sausage evenly over the eggs to create the base layers for the casserole.
Mix Creamy Sauce: In a mixing bowl, whisk together the milk, heavy cream, mustard powder, salt, black pepper, garlic powder, and onion powder until well combined. This mixture forms the creamy, flavorful custard that will bind the casserole ingredients.
Assemble Casserole: Pour the creamy milk and spice mixture evenly over the layered eggs and sausage. Make sure the mixture covers all the ingredients for even cooking and flavor absorption.
Add Cheese and Butter: Sprinkle the shredded Cheddar cheese evenly over the top of the casserole for a cheesy crust. Dot the surface with small pieces of butter, which will melt and create a golden, rich finish during baking.
Bake the Casserole: Place the dish in the preheated oven and bake for 25-30 minutes, or until the casserole is bubbly throughout and the cheese topping is melted and golden brown.

Notes

For best results, use freshly cooked sausage and freshly shredded cheese rather than pre-packaged to enhance flavor and texture.
You can prepare hard-boiled eggs ahead of time to save on prep. Just ensure they are cooled and peeled properly.
This casserole can be customized by adding vegetables like bell peppers or spinach for extra nutrition and color.
Leftovers store well in the refrigerator for up to 3 days and can be reheated in the oven or microwave.
To make the casserole easier to serve, let it rest for 5 minutes after baking to allow it to set slightly.