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Easy Overnight Ham and Cheese Hash Brown Casserole

easy overnight ham and cheese hash brown casserole - featured image

A quick and easy overnight casserole combining frozen hash browns, ham, and cheddar cheese for a comforting and hearty breakfast. Prep before bed and bake in the morning for a stress-free start to your day.

Ingredients

Scale
  • 30 oz (850 g) frozen shredded hash browns
  • 2 cups (280 g) cooked ham, diced
  • 2 cups (200 g) shredded cheddar cheese, divided
  • 1 cup (240 ml) sour cream
  • 1 can (10.5 oz / 298 ml) condensed cream of chicken soup
  • 1 teaspoon onion powder
  • 1 teaspoon garlic powder
  • Salt and pepper to taste
  • 2 tablespoons (28 g) butter, melted

Instructions

  1. Thaw the frozen hash browns by placing them in a colander and running under cold water for 3-5 minutes to remove excess ice crystals. Pat dry thoroughly with paper towels.
  2. Preheat your oven to 350°F (175°C).
  3. In a large bowl, combine sour cream, condensed cream of chicken soup, melted butter, onion powder, garlic powder, salt, and pepper. Whisk until smooth and well blended.
  4. Gently fold the thawed hash browns, diced ham, and 1 ½ cups (150 g) of shredded cheddar cheese into the creamy mixture. Avoid overmixing.
  5. Lightly grease a 9×13-inch baking dish with butter or non-stick spray. Pour the mixture in and spread evenly with a spatula.
  6. Sprinkle the remaining ½ cup (50 g) of cheddar cheese evenly on top.
  7. Cover the dish tightly with aluminum foil or plastic wrap and refrigerate for at least 6 hours or overnight.
  8. Bake uncovered at 350°F (175°C) for 55-65 minutes until the top is golden brown and bubbly. Tent with foil if the top browns too quickly.
  9. Let the casserole rest for 5-10 minutes before serving.

Notes

Thoroughly drying the hash browns prevents sogginess and helps achieve crispy edges. Use frozen shredded hash browns for best texture. Let the casserole rest after baking to set properly. If the top browns too fast, tent with foil. Optional add-ins include green onions, smoked paprika, bell peppers, or swapping ham for smoked turkey. For a vegetarian version, omit ham and add sautéed vegetables.

Nutrition

Keywords: overnight casserole, ham and cheese casserole, hash brown casserole, breakfast casserole, easy breakfast, make ahead breakfast