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Freshly baked Irish breakfast casserole with golden potatoes, sausage, and eggs in a white dish, garnished with parsley.

Irish Breakfast Casserole Recipe


  • Author: Luna
  • Total Time: 1 hour
  • Yield: 6 servings 1x

Description

This Irish Breakfast Casserole combines crispy potatoes, savory Irish sausage, and rich cheddar cheese, all baked together in a comforting, hearty dish. Perfect for brunch, holidays, or cozy mornings, this casserole brings the traditional flavors of an Irish breakfast to your table with ease.


Ingredients

Scale
  • 1 lb Irish-style sausage (or pork sausage)
  • 4 cups shredded potatoes (hash browns or Yukon Gold)
  • 1 cup Irish cheddar cheese, shredded
  • 6 large eggs
  • 1 small sweet onion, diced
  • 2 tbsp olive oil or butter
  • 1 tsp rosemary
  • Salt and pepper to taste
  • Optional Additions:
    • 1 cup cooked corned beef, diced
    • 1 cup fresh spinach
    • ½ cup red bell pepper, diced
    • ¼ cup heavy whipping cream (for creamier texture)

Instructions

  • Preheat Oven: Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.
  • Cook Sausage: In a skillet over medium heat, cook the sausage until browned. Add diced onion and cook until soft. Stir in optional veggies if using.
  • Layer Ingredients: Spread half the shredded potatoes in the baking dish. Layer the sausage mixture on top, followed by half the shredded cheese. Repeat with the remaining potatoes and cheese.
  • Add Eggs: In a bowl, whisk eggs with rosemary, salt, and pepper. Pour evenly over the layered casserole.
  • Bake: Bake uncovered for 35–40 minutes or until golden brown and the center is set. Let it rest for 5 minutes before slicing.
  • Serve: Garnish with fresh parsley and enjoy!

Notes

  • Make-Ahead: Assemble the casserole the night before, cover, and refrigerate. Bake fresh in the morning.
  • Customization: Swap sausage for bacon, corned beef, or vegetarian sausage. Add veggies like spinach or bell peppers for extra flavor.
  • Cheese Options: Try mixing Irish cheddar with mozzarella or gouda for extra creaminess.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: Irish

Nutrition

  • Serving Size: 1 slice
  • Calories: 420 kcal
  • Sugar: 2g
  • Sodium: 720mg
  • Fat: 28g
  • Saturated Fat: 12g
  • Unsaturated Fat: 14g
  • Trans Fat: 0g
  • Carbohydrates: 20g
  • Fiber: 2g
  • Protein: 22g
  • Cholesterol: 215mg

Keywords: Irish breakfast casserole, savory breakfast bake, brunch casserole, St. Patrick’s Day brunch