Description

This Overnight Slow Cooker Breakfast Casserole is a hearty and convenient morning meal that layers savory breakfast sausage, crispy hash browns, and melted cheddar cheese, all soaked in a flavorful egg mixture. Prepared the night before and slow-cooked to perfection, it delivers a warm, satisfying casserole perfect for busy mornings or weekend brunches.

Ingredients

Scale

Meat

1 pound breakfast sausage, cooked and crumbled

Vegetables & Potatoes

1 (32-ounce) bag frozen shredded hash browns

Dairy

2 cups shredded cheddar cheese
12 large eggs
1 cup milk

Spices & Seasonings

1 teaspoon dry mustard
1 teaspoon garlic powder
½ teaspoon onion powder
Salt and pepper, to taste

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Instructions

Prepare the Slow Cooker: Spray the inside of a 6-quart slow cooker generously with nonstick cooking spray to prevent sticking and ensure easy serving.
Layer Ingredients: Start by placing half of the frozen shredded hash browns evenly at the bottom of the slow cooker. Next, spread half of the cooked and crumbled breakfast sausage over the hash browns, followed by a layer of half the shredded cheddar cheese. Repeat these layers with the remaining hash browns, sausage, and cheese to build the casserole.
Mix Egg Mixture: In a large mixing bowl, whisk together the 12 large eggs, 1 cup of milk, 1 teaspoon dry mustard, 1 teaspoon garlic powder, ½ teaspoon onion powder, and salt and pepper to taste until the mixture is smooth and thoroughly combined.
Combine and Cook: Pour the prepared egg mixture evenly over the layered ingredients in the slow cooker, ensuring it covers the entire surface. Cover the slow cooker with its lid and cook on the low setting for 8 hours, or until the eggs are fully set and the casserole is heated through and cooked to perfection.
Serve: After cooking, use a spatula to slice and serve the casserole warm. It pairs wonderfully with fresh fruit or toast for a complete breakfast.

Notes

For best results, do not lift the slow cooker lid during cooking, as it may increase cooking time.
You can prepare this casserole the night before and set it to cook in the morning for a hassle-free breakfast.
Feel free to customize the casserole by adding diced bell peppers, onions, or mushrooms to the layers.
Use a mild or sharp cheddar cheese based on your flavor preference.
If you don’t have dry mustard, a small amount of Dijon mustard can be used as a substitute.