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Overnight corned beef hash breakfast casserole in a white and red baking dish
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4.76 from 45 votes

Corned Beef Hash Overnight Breakfast Casserole

Delicious, Comforting Overnight Breakfast Casserole Loaded with Corned Beef Hash, Eggs and Cheese! The Perfect Breakfast for Lazy Mornings!
Prep Time30 mins
Cook Time1 hr
Total Time1 hr 30 mins
Course: Breakfast
Cuisine: American
Servings: 8 servings
Calories: 654kcal
Author: Julie Evink


  • 2 cans MARY KITCHEN® Corned Beef Hash
  • 1/2 c. minced onion
  • 1/2 c. flour
  • 3 c. milk
  • 2 tsp hot sauce
  • 3 c. Colby Jack cheese divided
  • 10 eggs beaten
  • 1 tsp salt
  • 1/2 tsp pepper


  • In a large skillet brown Corned Beef Hash and onion over medium heat, until cooked through.
  • Add the flour to the mixture and continue cooking for 2 minutes, stirring occasionally. Slowly add milk and bring the mixture to a biol. Reduce heat and let simmer for 1-2 minutes or until thickened.
  • Remove from heat and add hot sauce and 2 c. of cheese. Stir until melted and set aside to cool for five minutes. Transfer to large bowl and add beaten eggs, salt and pepper. Stir until combined.
  • Pour mixture into a lightly greased 9x13'' baking dish. Place in fridge overnight.
  • Preheat oven to 350 degrees. Bake casserole for 1 hour or until the middle is set and edges are golden brown. Top with remaining cheese and bake 5 more minutes or until cheese is melted.


Calories: 654kcal | Carbohydrates: 19g | Protein: 40g | Fat: 45g | Saturated Fat: 24g | Cholesterol: 328mg | Sodium: 1664mg | Potassium: 511mg | Sugar: 5g | Vitamin A: 1325IU | Vitamin C: 17.2mg | Calcium: 748mg | Iron: 3.3mg