Wake up to the comforting flavors of the South with this hearty Charleston Breakfast Casserole—an easy make-ahead dish perfect for feeding a crowd. Packed with savory ground breakfast sausage, fluffy cubes of white bread, and gooey sharp cheddar cheese, this casserole is a wholesome blend of textures and flavors. The custardy base, made from eggs, whole milk, and a pinch of ground mustard for a hint of warmth, ensures every bite is rich and satisfying. With just 15 minutes of prep time and a golden-baked finish in under an hour, this one-pan dish is a lifesaver for busy mornings, brunch gatherings, or holiday breakfasts. Serve it hot, garnished with fresh parsley for a touch of color, and watch it disappear in seconds. Easy, delicious, and crowd-pleasing—this breakfast casserole will quickly become a family favorite.
Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish with the butter.
In a large skillet over medium heat, cook the ground breakfast sausage until browned and fully cooked, breaking it up into small pieces with a spatula. Drain any excess grease and set aside.
Cut the white bread slices into 1-inch cubes. Spread the bread cubes evenly in the greased baking dish.
Sprinkle the cooked sausage evenly over the bread cubes. Then, sprinkle the shredded sharp cheddar cheese over the top.
In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, and ground mustard until well combined.
Pour the egg mixture evenly over the bread, sausage, and cheese in the baking dish, ensuring that all the bread cubes are soaked.
Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
After 30 minutes, remove the foil and bake for an additional 15 minutes, or until the casserole is golden brown on top and the eggs are set in the middle.
Remove the casserole from the oven and allow it to rest for 5-10 minutes before slicing and serving.
Optional: Garnish with chopped fresh parsley before serving.
Calories |
3746 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 278.9 g | 358% | |
| Saturated Fat | 121.9 g | 610% | |
| Polyunsaturated Fat | 4.0 g | ||
| Cholesterol | 1768 mg | 589% | |
| Sodium | 9259 mg | 403% | |
| Total Carbohydrate | 126.8 g | 46% | |
| Dietary Fiber | 4.2 g | 15% | |
| Total Sugars | 32.4 g | ||
| Protein | 180.2 g | 360% | |
| Vitamin D | 11.4 mcg | 57% | |
| Calcium | 2907 mg | 224% | |
| Iron | 16.3 mg | 91% | |
| Potassium | 2587 mg | 55% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.