Make-Ahead Breakfast Casserole
A hearty, crowd-pleasing bake of seasoned sausage, crispy bacon, tender shredded potatoes, eggs, and sharp cheddar, ideal for holiday mornings or busy weekdays.
Ingredients
Meats
- 1 pound bulk breakfast sausage Feel free to mix and match with bacon or ham.
- 8 slices bacon, diced Adds that irresistible smoky crunch.
Egg and Milk Mixture
- 10 large eggs Creates a fluffy, custardy texture.
- 1.5 cups milk Whole milk gives the richest custard; 2% works fine.
- 1 tablespoon Dijon mustard Adds subtle tang.
- 1 teaspoon salt Enhances savory notes.
- 0.5 teaspoon coarse ground black pepper For a gentle kick.
Casserole Base
- 20 ounces shredded potatoes/hash browns Thawed frozen hash browns are convenient.
- 8 ounces cheddar cheese, grated Sharp or mild to taste.
- 0.25 cup green onions, sliced Adds a pop of freshness and color.
Instructions
Preparation
- In a large skillet over medium-high heat, crumble and brown the sausage until no pink remains. Transfer to a paper-towel-lined plate to drain excess fat.
- In the same skillet, cook the diced bacon until crisp. Drain on paper towels.
- In a large bowl, whisk together the eggs, milk, Dijon mustard, salt, and black pepper until frothy.
- In another large bowl, combine the shredded potatoes, cooked sausage, cooked bacon, grated cheddar, and sliced green onions. Stir to distribute evenly.
Assembly & Baking
- Grease a 9x13-inch baking dish and spread the potato-meat-cheese mixture evenly in the dish.
- Pour the egg mixture over the top, pressing gently so the eggs soak in. Cover tightly and refrigerate for at least 2 hours or overnight.
- Preheat the oven to 350°F (175°C). Remove dish from fridge and let sit for 10-15 minutes.
- Bake uncovered for 45-55 minutes, or until the center is set and a knife inserted comes out clean.
- Let the casserole rest for 10 minutes before slicing and serving.
Notes
Serve warm, and top portions with sliced avocado, salsa, or hot sauce. Pair with fresh fruit or a salad for complete brunch. Leftovers can be refrigerated for 3-4 days.