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A plate of hamburger hash brown casserole, ready to enjoy for dinner.

Hamburger Hash Brown Casserole Recipe

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The best one-skillet hamburger hash brown casserole recipe is just a click away. It’s hearty and delish!
Course Breakfast
Prep Time 35 minutes
Cook Time 20 minutes
Total Time 55 minutes
Servings 8 servings
Calories 584
Author Cheryl Najafi

Ingredients

Instructions

  • Preheat oven to 350 degrees.
  • Place a large (preferably oven-proof) skillet over medium-high heat then add oil. When the oil is hot, add the hash browns. Cook without stirring for 5–7 minutes until the bottom becomes golden brown and crispy. Once crispy, transfer hash browns to a plate then set aside—don’t worry if they are still underdone on top—they’ll finish cooking in the oven.
  • Return skillet to the heat and brown the ground beef with the onions, salt and pepper. When the beef is cooked through and no pink remains, drain grease and return to the heat.
  • Add milk and mushrooms then stir to combine. Scrape up any of the brown bits left on the bottom of the pan and allow the mixture to come to a bubble.
  • Reduce heat to medium-low, stir in chili powder and garlic powder until well combined then remove from heat. Add flour to thicken up the sauce if it's still too runny.
    If your skillet isn’t oven-safe, transfer the mixture to a 2-qt casserole dish. Otherwise, finish assembling the casserole in the skillet.
  • Sprinkle 1½ cups of shredded cheese on top of the ground beef mixture, reserving the rest to sprinkle on top. Add hash browns, browned side up, to the top of the casserole then sprinkle with remaining cheese.
  • Bake 18–20 minutes until piping hot. Remove from oven then allow it to cool 5 minutes before garnishing with chopped green onion.

Notes

This recipe is not complicated and, better yet, cleanup is a breeze!

Nutrition

Calories: 584kcal | Carbohydrates: 22g | Protein: 33g | Fat: 40g | Saturated Fat: 19g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 14g | Trans Fat: 1g | Cholesterol: 125mg | Sodium: 921mg | Potassium: 843mg | Fiber: 1g | Sugar: 4g