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Sausage and potato breakfast casserole baked in a white dish, topped with melted cheddar and chopped green onions.
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Potato Sausage Breakfast Casserole

A cozy breakfast bake with sausage, potato, broccoli, and cheddar—this casserole is perfect for mornings when you want comfort on the table fast!
Course Breakfast & Brunch
Cuisine American
Prep Time 10 minutes
Cook Time 45 minutes
Servings 4
Calories 388kcal
Author Michelle Ordever

Ingredients

  • Non-stick cooking spray
  • ½ pound bulk Italian sausage or sausage meat/skinless sausages in the UK
  • 1 small red onion diced
  • 1 large potato diced
  • 2 large eggs
  • 3 tablespoons whole milk
  • 2 cups fresh broccoli diced
  • ¾ cup sharp cheddar cheese shredded, divided
  • 2 tablespoons fresh chives finely chopped
  • Sea salt and black pepper to taste

Instructions

  • Preheat the oven to 375°F/190°C/Gas 5. Spray an 8x8-inch baking dish with non-stick cooking spray. Set it aside.
  • Place a large skillet (or frying pan) over medium heat and add the sausage. Cook for 3–4 minutes until lightly browned, breaking it apart with a wooden spoon.
    Black skillet with browned chunks of sausage cooking in their juices, with bowls of shredded cheddar cheese and chopped green onions nearby.
  • Add the onion and potato. Season with salt and pepper. Cook for 6–7 minutes, stirring occasionally, until the onion softens and the potatoes turn golden.
    Black skillet with browned sausage pieces, raw diced potatoes, and freshly chopped red onion, sprinkled with salt and pepper, ready to cook.
  • In a small bowl, whisk the eggs and milk. Season with salt and pepper. Stir in ½ cup of the shredded cheddar cheese.
    Stainless steel mixing bowl with beaten eggs and shredded cheddar cheese, with extra grated cheese and chopped green onions in bowls nearby.
  • Transfer the sausage and potato mixture into the prepared baking dish. Stir in the broccoli, then spread into an even layer.
    White casserole dish with a layer of browned sausage, golden potatoes, and fresh broccoli florets, ready to be topped with cheese.
  • Pour the egg mixture evenly over the top, then sprinkle with the remaining cheese.
    White casserole dish filled with cooked sausage, diced potatoes, and broccoli, topped generously with shredded cheddar cheese, with a bowl of chopped green onions beside it.
  • Bake for 30–35 minutes, or until the eggs are set and potatoes are tender.
  • Remove from oven and let cool for a few minutes. Top with fresh chives before slicing. Serve and enjoy!
    Plate of potato and sausage breakfast casserole topped with melted cheddar cheese and green onions, served with toast and tomatoes.

Notes

Tips

  • Use pre-shredded frozen hash browns instead of fresh potatoes for a shortcut.
  • Swap broccoli for spinach, peppers, or mushrooms to add variety to the flavors.
  • Try mozzarella, Monterey Jack, or Red Leicester cheese instead of cheddar.
 

Substitutions

  • Use chicken or turkey sausage for a lighter option.
  • Oat milk can be used as a substitute for dairy milk if needed.
  • Not sure about sausage or potato varieties? Refer to the sections above for alternatives.
 

Leftovers

  • Store cooled leftovers in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through.
 

Freezing

  • This casserole can be frozen after baking. Cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight in the fridge and reheat before serving.
  • You can also freeze the casserole before baking. Assemble as directed, wrap tightly, and freeze for up to 2 months. Thaw overnight in the fridge, then bake as directed, adding 10–15 minutes to the cooking time.
 
Always consult the Food Standards Agency in your country for the most up-to-date advice on storing and freezing foods: Food Safety (USA) | Food Standards Agency (UK)

Nutrition

Calories: 388kcal | Carbohydrates: 16g | Protein: 19g | Fat: 28g | Saturated Fat: 11g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 11g | Trans Fat: 0.01g | Cholesterol: 147mg | Sodium: 607mg | Potassium: 615mg | Fiber: 3g | Sugar: 3g | Vitamin A: 690IU | Vitamin C: 54mg | Calcium: 221mg | Iron: 2mg