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corned beef hash in a casserole dish

Corned Beef Hash Casserole

With savory corned beef, crispy potatoes, and an extra kick of flavor, you won’t be able to help but think of St. Patrick’s Day when you try this Corned Beef Hash Casserole Recipe.
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Course: Breakfast
Cuisine: Irish
Prep Time: 10 minutes
Cook Time: 1 hour 30 minutes
Total Time: 1 hour 40 minutes
Servings: 10 servings
Calories: 487kcal
Author: Jennifer Stewart

Ingredients

  • 32 ounces frozen tater tots
  • 2 tablespoons olive oil
  • 1 medium sweet onion diced
  • 1 red bell pepper diced
  • 1 green bell pepper diced
  • 2 cups cooked corned beef chopped small or shredded
  • 8 large eggs
  • 1 ½ cups milk
  • 2 tablespoons grainy or whole grain mustard
  • 2 cups Swiss cheese shredded
  • Dash of hot sauce

Instructions

  • Preheat oven to 450F.
  • Spray a 9x13 pan with nonstick cooking spray.
  • Layer ½ the tater tots in the bottom of the dish.
  • Spray the top of the tots with nonstick spray.
  • Bake until crispy, roughly 15 minutes. Remove and set aside.
  • Reduce heat of oven to 350F.
  • In a large skillet, heat the olive oil over medium high heat.
  • Cook the onion and bell peppers until softened, roughly 5 minutes.
  • Add the diced or shredded corned beef and cook another 2-3 minutes.
  • Remove from heat and set aside.
  • In a medium bowl, combine the eggs, milk, mustard, and hot sauce.
  • Whisk to combine and eggs are broken up.
  • Spread ¾ cup Swiss Cheese over the tater tots.
  • Spread the corned beef and vegetable mixture and spread into an even layer.
  • Pour the egg and milk mixture over the corned beef.
  • Add the remaining tater tots over the top.
  • Top with the remainder of the Swiss cheese.
  • Bake for 50-60 minutes or until the egg mixture is set and a light golden brown.
  • Remove and let cool for 5 minutes.
  • Serve warm!

Notes

  • I recommend using a cast iron skillet for cooking your corned beef and vegetables for the best flavor and texture. This is the best type of skillet because it’s able to give everything a beautiful sear.
  • No nonstick cooking spray to grease with? Melt some butter in a bowl before layering your casserole dish with aluminum foil and coating.
  • Reheat your leftovers from this dish in the slow cooker - all you need to do is put a serving in on medium heat for a few hours, until it’s thoroughly heated and enjoy!
  • Don’t like fresh parsley? Try topping with the fresh herbs or sliced green onions.

Nutrition

Serving: 1g | Calories: 487kcal | Carbohydrates: 32g | Protein: 23g | Fat: 30g | Saturated Fat: 10g | Polyunsaturated Fat: 17g | Cholesterol: 216mg | Sodium: 970mg | Fiber: 2g | Sugar: 5g