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Classic Breakfast Hashbrown Casserole

This creamy and cheesy breakfast casserole made with frozen hashbrowns and pantry staples is perfect for holidays and brunches. It feeds a crowd and is kid-approved!
Prep Time 10 minutes
Cook Time 50 minutes
Total Time 1 hour
Course Breakfast, Brunch, Casserole
Cuisine American
Servings 8 servings
Calories 320 kcal

Ingredients
  

Main Ingredients

  • 1 bag frozen hashbrowns (about 30–32 oz)
  • 1 cup shredded cheddar cheese sharp cheddar works well
  • 1 cup sour cream
  • 1 can cream of chicken soup can swap for cream of mushroom or vegetarian alternative if preferred
  • 1/2 cup onion, chopped sweet or yellow onion
  • 1/2 cup ranch dressing
  • Salt and pepper, to taste
  • 4 tablespoons butter, melted for a golden finish

Instructions
 

Preparation

  • Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking dish with butter or nonstick spray.
  • In a large bowl, whisk together the cream of chicken soup, sour cream, ranch dressing, chopped onion, salt, and pepper until smooth.
  • Stir in the shredded cheddar cheese, reserving a small handful to sprinkle on top if you like extra browning.
  • Fold the frozen hashbrowns into the mixture until evenly coated. If they’re clumped, break them apart with your hands or a spatula; no need to fully thaw.
  • Spread the hashbrown mixture evenly into the prepared baking dish. Pour the melted butter over the top, drizzling it so the surface gets an even coating.

Cooking

  • Bake uncovered for 45-55 minutes, until the edges are bubbly and the top is golden brown. If the top browns too quickly, tent the dish loosely with foil for the last 10-15 minutes.
  • Let the casserole rest 5–10 minutes before serving to firm up and make slicing easier.

Notes

Store leftovers in an airtight container for 3-4 days. This casserole can be frozen for up to 2 months. For variations, consider adding bacon, using different cheeses, or incorporating vegetables.
Keyword Breakfast Casserole, cheesy casserole, comfort food, Hashbrown Casserole, Make-Ahead Breakfast