Best Make Ahead Potato Breakfast Casserole


Best Make Ahead Potato Breakfast Casserole


This past holiday season I experimented with many easy breakfast casserole recipes. But there was one that stood out in simplicity and taste, that's the Best Make Ahead Potato Breakfast Casserole. Inspired by Betty Crocker and tweaked and tested to my personal taste, you won't find a better make ahead breakfast casserole - in my opinion! You can easily store this the night before to toss in the next morning, or bake right away.



  • 1/2 pound breakfast pork sausage
  • 1 medium onion, chopped (about 1/2 cup)
  • 1 tomato, chopped
  • 1 (30 ounce) bag frozen shredded hash brown potatoes, thawed
  • 2 cups shredded Cheddar cheese
  • 8 large eggs
  • 1 1/4 cup milk
  • 1/2 cup egg subsitute
  • 1 (8-ounce) container sour cream
  • 1 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 1/4 teaspoon paprika
  • 3/4 cup cornflakes
  • 2 tablespoons butter or margarine, melted
  • 1/4 teaspoon dill
  • 1 teaspoon ground mustard


  1. Preheat oven to 350 degrees F, (if baking day of).
  2. Make sure to spray a 13x9-inch (3-quart) glass baking dish with cooking spray.
  3. In a large skillet, cook pork sausage (adding onion and tomato half way through) over medium-high heat about 10 minutes, stirring occasionally, until fully cooked.
  4. In large bowl, toss sausage mixture, potatoes and cheeses. Spoon into baking dish.
  5. In another large bowl, beat eggs, egg subsitute, milk, sour cream and all spices with a fork or wire whisk until well blended. Pour over potato mixture.
  6. You can store this in the fridge covered overnight, or bake right away if desired. (If baking the next day, make sure to make the cornflake mixture for topping on the day of, see below).
  7. Bake uncovered 35 minutes. Meanwhile, in small bowl, mix cornflake crumbs and melted butter.
  8. Remove dish from oven long enough to sprinkle cornflakes over casserole.
  9. Bake another 10 to 15 minutes longer or until knife inserted in center comes out clean.

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Add another real egg or two and get rid of the substitute and skip the corn flake topping and you have a great casserole. I have never been much for corn flakes and don't see the need for a crunchy topping. If you have leftover ham, use that instead of sausage.

This is absolutely fantastic. We used fresh herbs and heirloom tomatoes. A great brunch dish.

can leftovers be frozen?

I want to try this for my volunteer group. What is the purpose of the egg substitute? Will it be ok without it. I was just wondering after adding so many eggs.......why toss the small amount of egg substitute?

1/4 c of egg substitute is equal to 1 egg. I plan on adding 2 extra eggs.

what the 'make ahead' part?


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