Prep Time: 20 minutesCook Time: 40 minutesTotal Time: 1 hourServings: 6–8Course: Main CourseCuisine: AmericanIngredients1½ lbs ground beef1 large yellow onion, diced3 cloves garlic, minced1 packet brown gravy mix1 cup beef broth1 tbsp Worcestershire sauce½ tsp garlic powder½ tsp onion powder½ tsp black pepperSalt, to taste24 oz frozen shredded hash browns, thawed1½ cups shredded cheddar cheese½ cup sour cream2 tbsp butter, meltedFresh parsley, chopped, optional for garnishInstructionsPreheat your oven to 375°F and lightly grease a 9x13-inch baking dish.Heat a large skillet over medium-high heat. Add the ground beef and cook until browned, breaking it into crumbles as it cooks. Drain excess grease.Add the diced onion and cook for 4–5 minutes until softened. Stir in the garlic and cook for another 30 seconds.Pour in the beef broth, then add the brown gravy mix, Worcestershire sauce, garlic powder, onion powder, black pepper, and salt.Stir well and simmer for 3–5 minutes, or until the gravy thickens and coats the beef.Spread the beef and onion gravy mixture evenly into the prepared baking dish.Spoon the sour cream over the beef and gently spread it into an even layer.Sprinkle 1 cup of shredded cheddar cheese over the sour cream.Place the thawed hash browns in a bowl and toss them with the melted butter and a small pinch of salt and pepper.Spread the hash browns evenly over the cheese without pressing them down too firmly.Sprinkle the remaining ½ cup of cheddar cheese over the top.Bake uncovered for 35–45 minutes, or until the filling is bubbling and the hash browns are golden and crispy.For extra browning, broil for 1–2 minutes at the end, watching closely so the topping does not burn.Let the casserole rest for 5–10 minutes before serving. Garnish with fresh parsley if desired.NotesFor crispier hash browns, squeeze out as much excess moisture as possible after thawing. You can also add mushrooms, peas, corn, bacon, green onions, or Pepper Jack cheese for different variations.StorageStore leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat individual portions in the microwave, oven, or air fryer until heated through.FreezingFreeze cooled portions in freezer-safe containers. Thaw overnight in the refrigerator before reheating for the best texture.