Best Easy Breakfast Casserole Recipe

a top down image of a freshly baked breakfast casserole

5 from 1 review

This really is the Best Easy Breakfast Casserole Recipe! Filled with delicious ingredients: eggs, breakfast sausage, cheese, potatoes, peppers, onions, cream and spices. So simple and so flavourful.


Units Scale
  • 1 lb ground breakfast sausage
  • 1/2 cup butter
  • 6 large potatoes, peeled and chopped
  • 1 small onion, chopped
  • 10 large eggs
  • 1 cup whole milk
  • 1/4 tsp seasoning salt
  • 1/8 tsp ground black pepper
  • 1/2 tsp dry mustard
  • 1 small green bell pepper, chopped (about 1/2 cup chopped)
  • 2 1/2 cups shredded cheese


  1. Preheat your oven to 350 degrees F.
  2. Prepare a 9×13 oven safe dish by buttering the bottom and sides. Set aside.
  3. In a large skillet brown the ground sausage. Once it’s cooked through and no longer pink, use a slotted spoon to remove the sausage and place it in a bowl. Set aside.
  4. To the same skillet add 1/2 cup butter, melt. Add the chopped potatoes and onion.
  5. Cook until the onions and potatoes are soft.
  6. In a separate large bowl whisk the eggs until they’re creamy and smooth.
  7. Whisk in the cream, seasoning salt, black pepper and dry mustard.
  8. Into the egg mixture stir in the chopped green pepper, shredded cheese, the potato mixture and cooked sausage.
  9. Pour the mixture into the prepared baking dish.
  10. Bake for 45 minutes to 1 hour. The bake will be done when the top is golden brown and it no longer jiggles in the centre.
  11. Remove from the oven and let it rest for 10 minutes before serving.
  12. Cut into individual portions and serve!

Keywords: breakfast casserole, sausage breakfast casserole, easy breakfast casserole, perfect casserole recipe, perfect breakfast casserole